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Word of the Day Tuesday, June 9, 2026

pyrogen

/ˈpaɪrədʒən/ noun · British & US
Valid in UKValid in US
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What does pyrogen mean?

noun

A pyrogen is a substance that induces fever, or a fever-producing agent. In medicine, a pyrogen is a substance that causes a rise in body temperature.

Example

"The doctor suspected that the patient's fever was caused by a pyrogen in the vaccine."

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

Synonyms for pyrogen

Antonyms of pyrogen

Rhymes with pyrogen

Etymologically related