Which prefix means "away from"?

The prefix "Abd," derived from "abduct," indicates a movement or direction away from a reference point. In medical terminology and anatomy, it is commonly used to describe actions or movements that occur away from the body's midline or a particular structure. For instance, in anatomy, "abduction" refers to the movement of a limb or other body part away from the midline of the body.

The other prefixes provided have distinct meanings and applications. "Crani," which pertains to the skull, does not convey the idea of moving away. "Cyt" refers to cells, indicating aspects related to cellular structure or function. Lastly, "Gastr" is related to the stomach, involving topics connected to digestion or gastronomy. Therefore, "Abd" is the prefix that accurately signifies "away from."