• synonyms


[fee-bruh l, feb-ruh l or, esp. British, fee-brahyl]
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  1. pertaining to or marked by fever; feverish.
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Origin of febrile

1645–55; < New Latin, Medieval Latin febrīlis. See fever, -ile
Related formsfe·bril·i·ty [fi-bril-i-tee] /fɪˈbrɪl ɪ ti/, nounnon·fe·brile, adjectivepost·fe·brile, adjectiveun·fe·brile, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for febrile

delirious, fiery, flushed, hot, inflamed, fevered, hallucinatory, pyretic

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Contemporary Examples of febrile

Historical Examples of febrile

British Dictionary definitions for febrile


  1. of or relating to fever; feverish
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Derived Formsfebrility (fɪˈbrɪlɪtɪ), noun

Word Origin for febrile

C17: from medical Latin febrīlis, from Latin febris fever
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for febrile


1650s, from Medieval Latin febrilis "pertaining to fever," from Latin febris "a fever" (see fever).

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Online Etymology Dictionary, © 2010 Douglas Harper

febrile in Medicine


(fĕbrəl, fēbrəl)
  1. Of, relating to, or characterized by fever; feverish.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.