The prefix Anti- means?

The prefix Anti- means?

• A. Around
• B. Against
• C. Within
• D. For

Answer: (B)

Understanding prefixes: anti- means against. This indicates opposition or negation toward what follows, so terms with anti- describe something that fights, blocks, or counteracts another thing. For example, antibacterial fights bacteria, antifreeze prevents freezing, an antidote counteracts poison, and anti-inflammatory reduces inflammation. The other options describe different directions or roles—around would be something like circum- or peri-, within would be intra- or endo-, and for would be pro- or in favor of. In practice, recognizing anti- helps you infer meaning of many medical terms quickly.

Understanding prefixes: anti- means against. This indicates opposition or negation toward what follows, so terms with anti- describe something that fights, blocks, or counteracts another thing. For example, antibacterial fights bacteria, antifreeze prevents freezing, an antidote counteracts poison, and anti-inflammatory reduces inflammation. The other options describe different directions or roles—around would be something like circum- or peri-, within would be intra- or endo-, and for would be pro- or in favor of. In practice, recognizing anti- helps you infer meaning of many medical terms quickly.