noun
any substance that can cause a rise in body temperature
• Syn: ↑pyrogen
• Derivationally related forms: ↑pyrogenous (for: ↑pyrogen)
• Hypernyms: ↑substance
adjective
having or causing fever
• Pertains to noun: ↑pyrogen
• Derivationally related forms: ↑pyrexia
Useful english dictionary. 2012.