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[ih-vap-uh-reyt] /ɪˈvæp əˌreɪt/
verb (used without object), evaporated, evaporating.
to change from a liquid or solid state into vapor; pass off in vapor.
Synonyms: vaporize.
to give off moisture.
to disappear; vanish; fade:
His hopes evaporated.
Synonyms: evanesce.
verb (used with object), evaporated, evaporating.
to convert into a gaseous state or vapor; drive off or extract in the form of vapor:
The warm sun evaporated the dew.
to extract moisture or liquid from, as by heat, so as to make dry or to reduce to a denser state:
to evaporate fruit.
to cause to disappear or fade; dissipate:
His involvement in the scandal evaporated any hope he had for a political career.
late Middle English
1375-1425; late Middle English evaporaten < Latin ēvapōrātus (past participle of ēvapōrāre to disperse in vapor); see e-1, vapor, -ate1
Related forms
half-evaporated, adjective
half-evaporating, adjective
nonevaporating, adjective
preevaporate, verb, preevaporated, preevaporating.
unevaporated, adjective
Can be confused
Synonym Study
5. Evaporate, dehydrate, dry mean to abstract moisture from. To evaporate is to remove moisture by means of heat, forced ventilation, or the like, and thus to produce condensation or shriveling: to evaporate milk, sliced apples. To dehydrate is to remove moisture from a vegetable, fruit, or body tissue: to dehydrate fruit; dehydrated from running. To dry may mean to wipe moisture off the surface or to withdraw moisture by natural means, such as exposure to air or heat: to dry a dish, clothes. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for evaporating
  • Opportunities for scientists, not to mention humanists and social scientists are evaporating rapidly.
  • Scientists have found huge concentrations of sulfur on the planet, thought to have formed as a result of water evaporating.
  • The air is juicy with the tang of mangled vegetation and evaporating moisture.
  • Nelson says hair booms wouldn't work once the oil starts evaporating and becomes thicker.
  • Water is evaporating, but staying in the air as a vapor.
  • Astronomers here observe the universe by studying faint radio waves emitted by stars, evaporating comets, and distant galaxies.
  • But the old struggles are now evaporating and with them, the viability of the structures that grew around them.
  • The sweat, which is water is evaporating into water vapor in the air.
  • But when the air is humid, evaporating the moisture becomes more difficult and the actual cooling effect is much smaller.
  • In the case of liquid nitrogen, it is the evaporating nitrogen that provides the insulating layer.
British Dictionary definitions for evaporating


to change or cause to change from a liquid or solid state to a vapour Compare boil1 (sense 1)
to lose or cause to lose liquid by vaporization, leaving a more concentrated residue
to disappear or cause to disappear; fade away or cause to fade away: all her doubts evaporated
(transitive) to deposit (a film, metal, etc) by vaporization of a liquid or solid and the subsequent condensation of its vapour
Derived Forms
evaporable, adjective
evaporability, noun
evaporation, noun
evaporative, adjective
evaporator, noun
Word Origin
C16: from Late Latin ēvapōrāre, from Latin vapor steam; see vapour
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
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Word Origin and History for evaporating



early 15c., from Latin evaporatum, past participle of evaporare (see evaporation). Related: Evaporated; evaporating.

Online Etymology Dictionary, © 2010 Douglas Harper
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evaporating in Medicine

evaporate e·vap·o·rate (ĭ-vāp'ə-rāt')
v. e·vap·o·rat·ed, e·vap·o·rat·ing, e·vap·o·rates

  1. To convert or change into a vapor; volatilize.

  2. To produce vapor.

  3. To draw or pass off in the form of vapor.

  4. To draw moisture away from, as by heating, leaving only the dry solid portion.

  5. To deposit a metal on a substrate by vacuum sublimation.

e·vap'o·ra'tive adj.
e·vap'o·ra'tor n.
e·vap'o·ra·tiv'i·ty (-ər-ə-tĭv'ĭ-tē) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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