penicillin

noun/ˌpɛnɪˈsɪlɪn/

Frequency rank: #12,551 most common English word

Meaning

an antibiotic drug derived from Pepenicillium mold, used to treat bacterial infections.

Illustration for the English word “penicillin”

Example sentence

The doctor prescribed penicillin to treat the patient's bacterial infection.

Synonyms & related words

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