noun py·rex·in \pīˈreksə̇n\

Definition of pyrexin



  1. :  a nitrogenous heat-stabile factor that is possibly a polypeptide, is found in inflammatory discharges, and may be responsible for the fever which accompanies inflammation — compare necrosin

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Origin and Etymology of pyrexin

New Latin pyrexia + English -in

Seen and Heard

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to cast off or become cast off

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