- a slight or invisible exhalation or vapor, especially one that is disagreeable or noxious.
Origin of effluvium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for effluvium
I am inclined to think, that this effluvium is not altogether an imaginary phenomenon.
Some people give forth an effluvium, which is more visible than that of others.
There is an optima distance for the realisation of this effluvium.
The effluvium is visible under other conditions, which are worth noting.
Some consider also that we inhale the effluvium arising from it, which has the like effect.William Clayton's Journal
- an unpleasant smell or exhalation, as of gaseous waste or decaying matter
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
- 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.