effluence meaning Use the word effluence when you talk about the action of something flowing or pouring out. The effluence of air from a popped balloon can sometimes send it flying around the room.
When you use the noun effluence, you are describing the quick spurt or flow of a substance. You might mention he effluence of bad breath from your dog or exclaim at the effluence of water from a draining kiddie pool. Both the process of the outflow and the substance itself — the water or air — can be called effluence. The Latin root is effluere, “to flow out,” from ex, “out,” and fluere, “to flow.