A dramatization is the acting out of something. You see these a lot in documentaries. For example, there could be a dramatization of the JFK assassination, using actors to show what happened on that fateful day.
If you watch a lot of true-crime shows, you probably regularly see dramatizations of dastardly deeds. Dramatization can also mean turning a novel into a movie or a play. Dramatization is a great way to cement learning. If you and your friends write a skit in biology class to show how photosynthesis works, you are much more likely to remember the process by which plants convert light into energy.
a dramatic representation
conversion into dramatic form