[ ih-floo-vee-uh m ]
/ ɪˈflu vi əm /

noun, plural ef·flu·vi·a [ih-floo-vee-uh] /ɪˈflu vi ə/, ef·flu·vi·ums.

a slight or invisible exhalation or vapor, especially one that is disagreeable or noxious.

Nearby words

  1. efflorescence,
  2. efflorescent,
  3. effluence,
  4. effluent,
  5. effluvia,
  6. efflux,
  7. effort,
  8. effort bargain,
  9. effort syndrome,
  10. effortful

Origin of effluvium

1640–50; < Latin, equivalent to ef- ef- + fluv-, base of fluere to flow (see effluent) + -ium -ium

Related formsef·flu·vi·al, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for effluvium

British Dictionary definitions for effluvium


/ (ɛˈfluːvɪəm) /

noun plural -via (-vɪə) or -viums

an unpleasant smell or exhalation, as of gaseous waste or decaying matter
Derived Formseffluvial, adjective

Word Origin for effluvium

C17: from Latin: a flowing out; see effluent

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 effluvium



1640s, from Latin effluvium "a flowing out," from effluere (see effluence).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for effluvium


[ ĭ-flōōvē-əm ]

n. pl. ef•flu•vi•ums

A shedding, especially of hair.
An exhalation, especially one of bad odor or injurious influence. No longer in technical use.

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