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Word of the Day Wednesday, June 10, 2026

antibiotic

/æntɪˈbaɪɒtɪk/ noun · British & US
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What does antibiotic mean?

noun

A substance that, when introduced into an organism, kills or inhibits the growth of microorganisms such as bacteria, fungi, or protozoa. Antibiotics are used to treat infections caused by these microorganisms.

Example

"The doctor prescribed an antibiotic to treat the patient's bacterial infection."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for antibiotic

Antonyms of antibiotic

Rhymes with antibiotic

Etymologically related