any medicine that lowers body temperature to prevent or alleviate feverSynonyms: antipyretic
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Webster's Dictionary (GCIDE)
Febrifuge \Feb"ri*fuge\, n. [L. febris fever + fugare to put to flight, from fugere to flee: cf. F. f['e]brifuge. see Febrile, Feverfew.] (Med.) A medicine serving to mitigate or remove fever. -- a. Antifebrile. [1913 Webster]