[ fee-bruh l, feb-ruh l or, esp. British, fee-brahyl ]
/ ˈfi brəl, ˈfɛb rəl or, esp. British, ˈfi braɪl /


pertaining to or marked by fever; feverish.

Nearby words

  1. febrifacient,
  2. febriferous,
  3. febrific,
  4. febrifugal,
  5. febrifuge,
  6. febrile convulsion,
  7. febrility,
  8. febris,
  9. february,
  10. february revolution

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. 2019

Examples from the Web for febrile

British Dictionary definitions for febrile


/ (ˈfiːbraɪl) /


of or relating to fever; feverish
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).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for febrile


[ fĕbrəl, fēbrəl ]


Of, relating to, or characterized by fever; feverish.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.