What does the prefix "cata-" mean?

The prefix "cata-" means "down" or "away from." This prefix is derived from the Greek word "katá," which conveys the concept of downward movement or a downward direction. In medical terminology, it is often used in terms that describe processes or conditions that involve a downward or degenerative aspect, such as catabolism, which refers to the breakdown of complex molecules into simpler ones.

By understanding "cata-" in this way, students can better grasp how this prefix modifies the meanings of various medical terms, providing insight into the nature of the conditions or processes being described. This foundational knowledge of prefixes allows for a clearer interpretation and use of medical vocabulary in practice.