The prefix 'Ab-' is commonly used in medical terminology to indicate:

The prefix 'Ab-' is derived from Latin, meaning "away from." In medical terminology, it is commonly used to denote a movement or a condition that is moving away from a particular point or reference. For example, in terms like "abduction," the term refers to moving a body part away from the midline of the body.

Understanding how prefixes function in medical terminology is crucial for accurately interpreting and constructing medical terms. In this case, recognizing that 'Ab-' signifies a directional aspect allows professionals to better comprehend various medical conditions and procedures that involve movement or separation from a defining point. Thus, identifying 'Ab-' with the meaning of "away from" is essential for proper use and understanding in the medical field.