class

If you attend school, you probably have a favorite class — a series of lectures or discussions where you can learn about a particular subject, like English, math, or economics.

The characteristic of being high quality or displaying elegance is also called class. Your snobby friend might glance around your favorite diner and say, “Let’s go somewhere else. This place has no class.” In society, class refers to a ranking system based on socio-economics, birth, education level, or a combination of those things. Your ancestors might have been working class, until your grandfather struck it rich.

Definitions of class

noun
a collection of things sharing a common attribute
“there are two
classes of detergents”
synonyms:
category, family
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types:

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grammatical category, syntactic category
(grammar) a category of words having the same grammatical properties

paradigm, substitution class
the class of all items that can be substituted into the same position (or slot) in a grammatical sentence (are in paradigmatic relation with one another)

brass family
(music) the family of brass instruments

violin family
(music) the family of bowed stringed instruments

woodwind family
(music) the family of woodwind instruments

stamp
a type or class

sex
either of the two categories (male or female) into which most organisms are divided

declension
a class of nouns or pronouns or adjectives in Indo-European languages having the same (or very similar) inflectional forms

conjugation
a class of verbs having the same inflectional forms

denomination
a class of one kind of unit in a system of numbers or measures or weights or money

histocompatibility complex
a family of fifty or more genes on the sixth human chromosome that code for proteins on the surfaces of cells and that play a role in the immune response

case, grammatical case
nouns or pronouns or adjectives (often marked by inflection) related in some way to other words in a sentence

form class, part of speech, word class
one of the traditional categories of words intended to reflect their functions in a grammatical context

number
the grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural)

person
a grammatical category used in the classification of pronouns, possessive determiners, and verb forms according to whether they indicate the speaker, the addressee, or a third party

gender, grammatical gender
a grammatical category in inflected languages governing the agreement between nouns and pronouns and adjectives; in some languages it is quite arbitrary but in Indo-European languages it is usually based on sex or animateness

tense
a grammatical category of verbs used to express distinctions of time

participant role, semantic role
(linguistics) the underlying relation that a constituent has with the main verb in a clause

type of:

accumulation, aggregation, assemblage, collection
several things grouped together or considered as a whole
noun
people having the same social, economic, or educational status
“the working
class”
“an emerging professional
class”
synonyms:
social class, socio-economic class, stratum
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examples:

Ferdinand and Isabella
joint monarchs of Spain; Ferdinand V and Isabella I

William and Mary
joint monarchs of England; William III and Mary II

types:

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domain, world
people in general; especially a distinctive group of people with some shared interest

age class
people in the same age range

agriculture
the class of people engaged in growing food

brotherhood, fraternity, sodality
people engaged in a particular occupation

estate, estate of the realm, the three estates
a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights

labor, labour, proletariat, working class
a social class comprising those who do manual labor or work for wages

lower class, underclass
the social class lowest in the social hierarchy

bourgeoisie, middle class
the social class between the lower and upper classes

booboisie
class consisting of all those who are considered boobs

commonality, commonalty, commons
a class composed of persons lacking clerical or noble rank

peasantry
the class of peasants

demimonde
a class of woman not considered respectable because of indiscreet or promiscuous behavior

underworld
the criminal class

yeomanry
class of small freeholders who cultivated their own land

caste
a social class separated from others by distinctions of hereditary rank or profession or wealth

caste
(Hinduism) a hereditary social class among Hindus; stratified according to ritual purity

upper class, upper crust
the class occupying the highest position in the social hierarchy

ninja
a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations

firing line
the most advanced and responsible group in an activity

immigrant class
recent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds

center
politically moderate persons; centrists

old school
a class of people favoring traditional ideas

market
the customers for a particular product or service

craft, trade
people who perform a particular kind of skilled work

fair sex, woman, womanhood
women as a class

Lords Spiritual, first estate
the clergy in France and the heads of the church in Britain

Lords Temporal, second estate
the nobility in France and the peerage in Britain

Commons, third estate
the common people

fourth estate
the press, including journalists, newspaper writers, photographers

labor force, labor pool
the source of trained people from which workers can be hired

lumpenproletariat
(Marxism) the unorganized lower levels of the proletariat who are not interested in revolutionary advancement

organized labor
employees who are represented by a labor union

petit bourgeois, petite bourgeoisie, petty bourgeoisie
lower middle class (shopkeepers and clerical staff etc.)

academe, academia
the academic world

Grub Street
the world of literary hacks

jati
(Hinduism) a Hindu caste or distinctive social group of which there are thousands throughout India; a special characteristic is often the exclusive occupation of its male members (such as barber or potter)

elite, elite group
a group or class of persons enjoying superior intellectual or social or economic status

aristocracy, gentry
the most powerful members of a society

people in power, ruling class
the class of people exerting power or authority

black market
people who engage in illicit trade

type of:

people
(plural) any group of human beings (men or women or children) collectively
noun
a body of students who are taught together
“early morning
classes are always sleepy”
synonyms:
course, form, grade
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types:

master class
a class (especially in music) given to talented students by an expert

discussion section, section
a small class of students who are part of a larger course but are taught separately

type of:

assemblage, gathering
a group of persons together in one place
noun
a body of students who graduate together
“the
class of ’97”
synonyms:
year
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graduating class
the body of students who graduate together this year

senior class
final grade or class in high school or college

junior class
penultimate class in high school or college

sophomore class
the second class in a four-year college or high school

freshman class
the first class in college or high school

type of:

assemblage, gathering
a group of persons together in one place
noun
(biology) a taxonomic group containing one or more orders
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types:

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Schizomycetes, class Schizomycetes
a former classification

Cyanophyceae, class Cyanobacteria, class Cyanophyceae
photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae

Sarcodina, class Sarcodina
characterized by the formation of pseudopods for locomotion and taking food: Actinopoda; Rhizopoda

Actinopoda, subclass Actinopoda
heliozoans; radiolarians

Rhizopoda, subclass Rhizopoda
creeping protozoans: amoebas and foraminifers

Ciliata, Ciliophora, class Ciliata, class Ciliophora
class of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle

Infusoria, subclass Infusoria
in some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter

Chrysophyceae, Heterokontae, class Chrysophyceae, class Heterokontae
all the yellow-green algae having flagella of unequal length

Xanthophyceae, class Xanthophyceae
yellow-green algae

Bacillariophyceae, Diatomophyceae, class Bacillariophyceae, class Diatomophyceae
marine and freshwater eukaryotic algae: diatoms

Phaeophyceae, class Phaeophyceae
brown algae; mostly marine and littoral eukaryotic algae

Cyclosporeae, class Cyclosporeae
in more recent classifications superseded by the order Fucales

Euglenophyceae, class Euglenophyceae
coextensive with the division Euglenophyta

Chlorophyceae, class Chlorophyceae
algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments

Ulvophyceae, class Ulvophyceae
alternative name for the class Chlorophyceae in some classifications

Charophyceae, class Charophyceae
in some classifications: contains only the order Charales

Rhodophyceae, class Rhodophyceae
coextensive with the Rhodophyta: red algae

Flagellata, Mastigophora, class Flagellata, class Mastigophora
protozoa having flagella

Zoomastigina, subclass Zoomastigina
in some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates

Phytomastigina, subclass Phytomastigina
plantlike flagellates containing chlorophyll; often considered unicellular algae

Cryptophyceae, class Cryptophyceae
motile usually brownish-green protozoa-like algae

Sporozoa, class Sporozoa
strictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites

Telosporidia, subclass Telosporidia
parasitic sporozoans that form spores containing one or more infective sporozoites

Acnidosporidia, subclass Acnidosporidia
a subclass of Sporozoa

Cnidosporidia, subclass Cnidosporidia
single-host parasites of lower vertebrates and invertebrates

Ascidiaceae, class Ascidiaceae
sometimes classified as an order: sea squirts

Thaliacea, class Thaliacea
small class of free-swimming tunicates; sometimes classified as an order

Larvacea, class Larvacea
small free-swimming tunicates; sometimes classified as an order

Agnatha, superclass Agnatha
superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms

Gnathostomata, superclass Gnathostomata
comprising all vertebrates with upper and lower jaws

Placodermi, class Placodermi
extinct group of bony-plated fishes with primitive jaws

Chondrichthyes, class Chondrichthyes
cartilaginous fishes

Holocephali, subclass Holocephali
chimaeras and extinct forms

Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachii
sharks; rays; dogfishes; skates

Aves, class Aves
(ornithology) the class of birds

Archaeornithes, subclass Archaeornithes
primitive reptile-like fossil birds of the Jurassic or early Cretaceous

amphibia, class Amphibia
the class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians

Reptilia, class Reptilia
class of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals

Anapsida, subclass Anapsida
oldest known reptiles; turtles and extinct Permian forms

Lepidosauria, subclass Lepidosauria
diapsid reptiles: lizards; snakes; tuataras

Archosauria, subclass Archosauria
a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts

Synapsida, subclass Synapsida
extinct reptiles of the Permian to Jurassic considered ancestral to mammals

Chelicerata, superclass Chelicerata
spiders; scorpions; horseshoe crabs

Arachnida, class Arachnida
a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings

superclass Myriapoda
used in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes

Pauropoda, class Pauropoda
an obscure class of minute arthropods with branched antennae and 8 to 10 pairs of legs

Symphyla, class Symphyla
small class of minute arthropods; unimportant except for the garden centipede

Tardigrada, class Tardigrada
in some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx

Chilopoda, class Chilopoda
arthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes

Diplopoda, Myriapoda, class Diplopoda, class Myriapoda
arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes

Mammalia, class Mammalia
warm-blooded vertebrates characterized by mammary glands in the female

Prototheria, subclass Prototheria
echidnas; platypus

Pantotheria, subclass Pantotheria
generalized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals

Metatheria, subclass Metatheria
pouched animals

Eutheria, subclass Eutheria
all mammals except monotremes and marsupials

Hyalospongiae, class Hyalospongiae
sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers

Scyphozoa, class Scyphozoa
coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes

Hydrozoa, class Hydrozoa
coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes

Actinozoa, Anthozoa, class Actinozoa, class Anthozoa
a large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed

Nuda, class Nuda
ctenophores lacking tentacles; comprises one genus: beroe

Tentaculata, class Tentaculata
ctenophores have retractile tentacles

Turbellaria, class Turbellaria
free-living flatworms

Trematoda, class Trematoda
parasitic flatworms (including flukes)

Cestoda, class Cestoda
tapeworms

Aphasmidia, class Aphasmidia
one of two subgroups of Nematoda used in some classification systems

Phasmidia, class Phasmidia
one of two subgroups of Nematoda used in some classification systems

Archiannelida, class Archiannelida
a class of Annelida

Oligochaeta, class Oligochaeta
earthworms

Polychaeta, class Polychaeta
marine annelid worms

Hirudinea, class Hirudinea
hermaphroditic aquatic or terrestrial or parasitic annelids

Scaphopoda, class Scaphopoda
small class of bilaterally symmetrical marine forms comprising the tooth shells

Gasteropoda, Gastropoda, class Gasteropoda, class Gastropoda
snails and slugs and their relatives

Opisthobranchia, subclass Opisthobranchia
gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares

Amphineura, subclass Amphineura
a class of Gastropoda

Polyplacophora, class Polyplacophora
small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura

Bivalvia, Lamellibranchia, class Bivalvia, class Lamellibranchia, class Pelecypoda
oysters; clams; scallops; mussels

Cephalopoda, class Cephalopoda
octopuses; squids; cuttlefish; pearly nautilus

Dibranchia, Dibranchiata, subclass Dibranchia, subclass Dibranchiata
comprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish)

Crustacea, class Crustacea
class of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas

Malacostraca, subclass Malacostraca
largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies

Entomostraca, subclass Entomostraca
in some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use

Branchiopoda, subclass Branchiopoda
primitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas

Copepoda, subclass Copepoda
minute planktonic or parasitic crustaceans

Ostracoda, subclass Ostracoda
seed shrimps

Cirripedia, subclass Cirripedia
barnacles

Onychophora, class Onychophora
enigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids

Hexapoda, Insecta, class Hexapoda, class Insecta
insects; about five-sixths of all known animal species

Exopterygota, Hemimetabola, subclass Exopterygota
subclass of insects characterized by gradual and usually incomplete metamorphosis

Asteroidea, class Asteroidea
sea stars

Ophiuroidea, class Ophiuroidea
brittle stars and basket stars

Ophiurida, subclass Ophiurida
brittle stars

Euryalida, subclass Euryalida
basket stars

Echinoidea, class Echinoidea
sea urchins and sand dollars

Crinoidea, class Crinoidea
sea lilies

Holothuroidea, class Holothuroidea
class of echinoderms including the sea cucumbers

Hominoidea, superfamily Hominoidea
anthropoid apes and human beings

Channidae, class Channidae
snakeheads

Osteichthyes, class Osteichthyes
a class of fish having a skeleton composed of bone in addition to cartilage

Crossopterygii, subclass Crossopterygii
fishes having paired fins resembling limbs and regarded as ancestral to amphibians

Dipnoi, subclass Dipnoi
bony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii

Teleostei, subclass Teleostei
large diverse group of bony fishes; includes most living species

Anthoceropsida, class Anthoceropsida
hornworts: in some classification systems included in the class Hepaticopsida

Bryopsida, Musci, class Bryopsida, class Musci
true mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales

Hepaticae, Hepaticopsida, class Hepaticae, class Hepaticopsida
liverworts: comprises orders Anthocerotales; Jungermanniales; Marchantiales; Sphaerocarpales

Gymnospermae, Gymnospermophyta, class Gymnospermae, division Gymnospermophyta
plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida)

Gnetophyta, Gnetophytina, Gnetopsida, class Gnetopsida, subdivision Gnetophytina
gymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta)

Cycadophyta, Cycadophytina, Cycadopsida, class Cycadopsida, subdivision Cycadophyta, subdivision Cycadophytina
palmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta)

Pteridospermopsida, class Pteridospermopsida
extinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies

Coniferophyta, Coniferophytina, Coniferopsida, class Coniferopsida, subdivision Coniferophytina
cone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian)

Pinophytina, Pinopsida, class Pinopsida, subdivision Pinophytina
most conifers: in some systems classified as a class (Pinopsida) and in others as a subdivision (Pinophytina); used in some classifications for one of five subdivisions of Gymnospermophyta

Taxophytina, Taxopsida, class Taxopsida, subdivision Taxophytina
yews: in some systems classified as a class (Taxopsida) and in others as a subdivision (Taxophytina) used in some classifications for one of five subdivisions of Gymnospermophyta

Ginkgophytina, Ginkgopsida, class Ginkgophytina, class Ginkgopsida, subdivision Ginkgophyta, subdivision Ginkgophytina
ginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta

Angiospermae, Anthophyta, Magnoliophyta, class Angiospermae, division Anthophyta, division Magnoliophyta
comprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta)

Dicotyledonae, Dicotyledones, Magnoliopsida, class Dicotyledonae, class Dicotyledones, class Magnoliopsida
comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae

Magnoliidae, ranalian complex, subclass Magnoliidae
a group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder

Liliopsida, Monocotyledonae, Monocotyledones, class Liliopsida, class Monocotyledonae, class Monocotyledones
comprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae

Alismatidae, subclass Alismatidae
one of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semiaquatic herbs

Arecidae, subclass Arecidae
one of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae

Commelinidae, subclass Commelinidae
one of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae

Caryophyllidae, subclass Caryophyllidae
a group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorder

Asteridae, subclass Asteridae
a group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder

Rosidae, subclass Rosidae
a group of trees and shrubs and herbs mostly with polypetalous flowers; contains 108 families including Rosaceae; Crassulaceae; Myrtaceae; Melastomaceae; Euphorbiaceae; Umbelliferae

Hamamelidae, subclass Hamamelidae
a group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder

Dilleniidae, subclass Dilleniidae
a group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder

Liliidae, subclass Liliidae
one of four subclasses or superorders of Monocotyledones; comprises 17 families including: Liliaceae; Alliaceae; Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae

Zygomycetes, class Zygomycetes
class of fungi coextensive with subdivision Zygomycota

Myxomycetes, class Myxomycetes
the class of true slime molds; essentially equivalent to the division Myxomycota

Acrasiomycetes, class Acrasiomycetes
cellular slime molds; in some classifications placed in kingdom Protoctista

Oomycetes, class Oomycetes
nonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists

Chytridiomycetes, class Chytridiomycetes
a class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants

Eumycetes, class Eumycetes
category used in some classifications: coextensive with division Eumycota

Deuteromycetes, class Deuteromycetes
form class; coextensive with subdivision Deuteromycota

Basidiomycetes, class Basidiomycetes
large class of higher fungi coextensive with subdivision Basidiomycota

Homobasidiomycetes, subclass Homobasidiomycetes
category used in some classification systems for various basidiomycetous fungi including e.g. mushrooms and puffballs which are usually placed in the classes Gasteromycetes and Hymenomycetes

Heterobasidiomycetes, subclass Heterobasidiomycetes
category used in some classification systems for various basidiomycetous fungi including rusts and smuts

Hymenomycetes, class Hymenomycetes
used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi

Ascomycetes, class Ascomycetes
large class of higher fungi coextensive with division Ascomycota: sac fungi

Euascomycetes, subclass Euascomycetes
category not used in many classification systems

Hemiascomycetes, class Hemiascomycetes
class of fungi in which no ascocarps are formed: yeasts and some plant parasites

Plectomycetes, class Plectomycetes
class of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration)

Pyrenomycetes, class Pyrenomycetes
class of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora

Discomycetes, subclass Discomycetes
a large and taxonomically difficult group of Ascomycetes in which the fleshy fruiting body is disklike or cup-shaped

Gasteromycetes, Gastromycetes, class Gasteromycetes, class Gastromycetes
fungi in which the hymenium is enclosed until after spores have matured: puffballs; earth stars; stinkhorn fungi

Tiliomycetes, class Tiliomycetes
category used in some systems to comprise the two orders Ustilaginales (smuts) and Uredinales (rusts)

Filicinae, Filicopsida, class Filicinae, class Filicopsida
ferns

Psilopsida, Psilotatae, class Psilopsida, class Psilotatae
whisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs

Equisetatae, Sphenopsida, class Equisetatae, class Sphenopsida
horsetails and related forms

Lycopodiate, Lycopsida, class Lycopodiate, class Lycopsida
club mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta

Lycopodineae, class Lycopodineae
alternative designation for the class Lycopsida

type of:

taxon, taxonomic category, taxonomic group
animal or plant group having natural relations
verb
arrange or order by classes or categories

synonyms:
assort, classify, separate, sort, sort out
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types:

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unitise, unitize
separate or classify into units

catalog, catalogue
make an itemized list or catalog of; classify

isolate
separate (experiences) from the emotions relating to them

refer
think of, regard, or classify under a subsuming principle or with a general group or in relation to another

reclassify
classify anew, change the previous classification

size
sort according to size

dichotomise, dichotomize
divide into two opposing groups or kinds

pigeonhole, stamp, stereotype
treat or classify according to a mental stereotype

group
arrange into a group or groups

grade
determine the grade of or assign a grade to

count, number
put into a group

regroup
reorganize into new groups

bracket
classify or group

chunk, collocate, lump
group or chunk together in a certain order or place side by side

batch
batch together; assemble or process as a batch

type of:

categorise, categorize
place into or assign to a category
noun
education imparted in a series of lessons or meetings
“flirting is not unknown in college
classes”
synonyms:
course, course of instruction, course of study
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types:

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adult education
a course (via lectures or correspondence) for adults who are not otherwise engaged in formal study

art class
a class in which you learn to draw or paint

childbirth-preparation class
a course that teaches pregnant women to use breathing and concentration and exercise techniques to use during labor

correspondence course
a course offered (by mail) by a correspondence school

course of lectures
a series of lectures dealing with a subject

directed study
a course of study that is supervised and controlled by a specialist in the subject

elective, elective course
a course that the student can select from among alternatives

extension course
a course offered as part of an extension service

home study
a course of study carried out at home rather than in a classroom

industrial arts
a course in the methods of using tools and machinery as taught in secondary schools and technical schools

orientation, orientation course
a course introducing a new situation or environment

propaedeutic, propaedeutics
a course that provides an introduction to an art or science (or to more advanced study generally)

refresher, refresher course
a course that reviews and updates a topic for those who have not kept abreast of developments

required course
a course that all students are required to take

seminar
a course offered for a small group of advanced students

shop, shop class
a course of instruction in a trade (as carpentry or electricity)

workshop
a brief intensive course for a small group; emphasizes problem solving

life class
an art class using a live human model

type of:

didactics, education, educational activity, instruction, pedagogy, teaching
the activities of educating or instructing; activities that impart knowledge or skill
noun
elegance in dress or behavior
“she has a lot of
class”
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type of:

elegance
a refined quality of gracefulness and good taste
noun
a league ranked by quality
“he played baseball in
class D for two years”
synonyms:
division
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type of:

conference, league
an association of sports teams that organizes matches for its members

Word Family

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