Evaporation definition | Dictionary.com

e⋅vap⋅o⋅ra⋅tion

[i-vap-uh-rey-shuh

–noun

1.	the act or process of evaporating.

2.	the state of being evaporated.

3.	Archaic. matter or the quantity of matter evaporated or passed off in vapor.

Origin:
1350–1400; ME evaporacioun < L ēvapōrātiōn- (s. of ēvapōrātiō). See evaporate, -ion

Related forms:

e⋅vap⋅o⋅ra⋅tive [i-vap-uh-rey-tiv, -er-uh-tiv]

, adjective

e⋅vap⋅o⋅ra⋅tive⋅ly, adverb

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To Evaporation

e·vap·o·rate (ĭ-vāp'ə-rāt')

v. e·vap·o·rat·ed, e·vap·o·rat·ing, e·vap·o·rates

v. tr.

1. To convert or change into a vapor.
2. To draw off in the form of vapor.
To draw moisture from, as by heating, leaving only the dry solid portion.
To deposit (a metal) on a substrate by vacuum sublimation.

v. intr.

1. To change into vapor.
2. To pass off in or as vapor.
To produce vapor.
To disappear; vanish: Our fears at last evaporated. See Synonyms at disappear.

[Middle English evaporaten, from Latin ēvapōrāre, ēvapōrāt- : ē-, ex-, ex- + vapor, steam.]
e·vap'o·ra'tion n., e·vap'o·ra'tive adj., e·vap'o·ra'tive·ly adv., e·vap'o·ra·tiv'i·ty (-ərə-tĭv'ĭ-tē) n., e·vap'o·ra'tor n.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Evaporation

E*vap`o*ra"tion\, n. [L. evaporatio: cf. F. ['e]vaporation.]

1. The process by which any substance is converted from a liquid state into, and carried off in, vapor; as, the evaporation of water, of ether, of camphor.

2. The transformation of a portion of a fluid into vapor, in order to obtain the fixed matter contained in it in a state of greater consistence.

3. That which is evaporated; vapor.

4. (Steam Engine) See Vaporization.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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evaporation

The changing of a liquid into a gas, often under the influence of heat (as in the boiling of water). (See vaporization.)

Note: The evaporation of water from the oceans is a major component in the hydrologic cycle.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

evaporation

1398, from L. evaporationem (nom. evaporatio), from evaporare "disperse in vapor or steam," from ex- "out" + vapor "steam" (see vapor).

Main Entry: evap·o·ra·tion
Pronunciation: i-"vap-&-'rA-sh&n
Function: noun
: the change by which any substance is converted froma liquid state into and carried off in vapor; specifically : the conversion of a liquid into vapor in order to remove it wholly or partly from a liquid of higher boiling point or fromsolids dissolved in or mixed with it —evap·o·rate /i-'vap-&-"rAt/ verb -rat·ed; -rat·ing
—evap·o·ra·tor /-"rAt-&r/ noun

evaporation e·vap·o·ra·tion (ĭ-vāp'ə-rā'shən)
n.

A change from liquid to vapor form.
Loss of volume of a liquid by conversion into vapor. Also called volatilization.

evaporation (ĭ-vāp'ə-rā'shən) Pronunciation Key
The change of a liquid into a vapor at a temperature below the boiling point. Evaporation takes place at the surface of a liquid, where molecules with the highest kinetic energy are able to escape. When this happens, the average kinetic energy of the liquid is lowered, and its temperature decreases.

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