What is the meaning of the medical prefix PRO-?

What is the meaning of the medical prefix PRO-?

• A. Before
• B. After
• C. Toward
• D. Against

Answer: (A)

The prefix PRO- means before or forward, signaling something that happens ahead of or in front of something else. In medical terms, this helps describe ideas or actions that occur in advance. For example, prognosis uses pro- with gnosis to indicate knowledge about a disease’s outcome before it fully unfolds; a prologue is text that comes before the main part; being proactive means acting in advance. So, the meaning of PRO- here is "Before." Other senses come from different prefixes: post- means after, toward is expressed by toward or ad-, and anti- means against.

The prefix PRO- means before or forward, signaling something that happens ahead of or in front of something else. In medical terms, this helps describe ideas or actions that occur in advance. For example, prognosis uses pro- with gnosis to indicate knowledge about a disease’s outcome before it fully unfolds; a prologue is text that comes before the main part; being proactive means acting in advance. So, the meaning of PRO- here is "Before." Other senses come from different prefixes: post- means after, toward is expressed by toward or ad-, and anti- means against.