Which prefix means back, again?

Which prefix means back, again?

• A. Re-
• B. Hemi-
• C. A-
• D. An-

Answer: (A)

Understanding prefixes helps you read medical terms quickly. The prefix re- communicates doing something again or returning to a previous state, which aligns with the idea of something being done back or again. It shows up in words like redo, reopen, or restore, signaling repetition or a return to an earlier condition. The other prefixes have different meanings: hemi- means half; A- (or an-) can indicate not or without; An- is another form of a negative prefix. None of those convey the sense of repeating or returning as clearly as re-.

Understanding prefixes helps you read medical terms quickly. The prefix re- communicates doing something again or returning to a previous state, which aligns with the idea of something being done back or again. It shows up in words like redo, reopen, or restore, signaling repetition or a return to an earlier condition. The other prefixes have different meanings: hemi- means half; A- (or an-) can indicate not or without; An- is another form of a negative prefix. None of those convey the sense of repeating or returning as clearly as re-.