IPA: //ˌæntiˈpaɪriːn//
KK: /æntiˈpaɪrin/
A white powder that was used to lower fever and relieve pain, but is now mostly replaced by safer alternatives like aspirin.
The doctor prescribed antipyrine to help reduce the patient's fever.
Antipyrine is formed from "anti-" (meaning against) and "pyrine" (from Greek "pur" meaning fire or fever). The word describes a substance that works against fever.
Think of 'anti-' meaning against and 'pyrine' relating to fire or fever — that's why antipyrine is a substance that fights fever.