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emanation

[em-uh-ney-shuh n]
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noun

an act or instance of emanating.
something that emanates or is emanated.
Physical Chemistry. a gaseous product of radioactive disintegration, including radon, thoron, and actinon. Symbol: Em

Origin of emanation

1560–70; < Late Latin ēmānātiōn- (stem of ēmānātiō), equivalent to ēmānāt(us) (see emanate) + -iōn- -ion
Related formsem·a·na·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for emanation

origin, effusion, ejaculation, escape, proceeding, exhalation, radiation, flowing, origination, emission, efflux, beginning, derivation, outflow, flow, gush, drainage, effluence, leakage, oozing

Examples from the Web for emanation

Historical Examples of emanation

British Dictionary definitions for emanation

emanation

noun

an act or instance of emanating
something that emanates or is produced; effusion
a gaseous product of radioactive decay, such as radon
Derived Formsemanational, adjective
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 emanation
n.

1560s, from Late Latin emanationem (nominative emanatio), noun of action from past participle stem of Latin emanare "flow out, arise, proceed," from ex- "out" (see ex-) + manare "to flow," from PIE root *ma- "damp."

Online Etymology Dictionary, © 2010 Douglas Harper
emanation in Medicine

emanation

[ĕm′ə-nā′shən]

n.

Something that issues from a source; an emission.
Any of several radioactive gases that are isotopes of radon and are products of radioactive decay.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.