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Dictionary · Word part

anti-

A word beginning that means against or opposing.

AN-tee, or AN-ty prefix

What it means

The beginning of many drug class names, because the drug works against something: an antibiotican-tee-by-OT-ikA drug that kills bacteria or stops them from growing.anti- againstbi/o life-ic relating toFull entry works against bacteria, an anticoagulantan-tee-koh-AG-yoo-luntA drug that slows the blood's ability to form clots.anti- againstcoagul/o clotting-ant an agent that doesFull entry against clotting, an antiemetic against vomiting, an antipyretic against fever, and an antihypertensive against high blood pressure. Do not confuse it with ante-AN-teeA word beginning that means before, in time or in place.Full entry , which means before.

Remember it

Anti is against, like antivirus software.

Related terms

antineoplastic

A drug used to treat cancer by killing cancer cells or stopping them from growing and dividing.

anticoagulant

A drug that slows the blood's ability to form clots.

ante-

A word beginning that means before, in time or in place.

antibiotic

A drug that kills bacteria or stops them from growing.

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