[lik-wuh-fak-shuh n]
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Origin of liquefaction

1375–1425; late Middle English < Late Latin liquefactiōn- (stem of liquefactiō) a melting, equivalent to Latin liquefact(us) (past participle of liquefacere to melt, liquefy) + -iōn- -ion
Related formsliq·ue·fac·tive, adjective
Can be confusedevanescence evaporation liquefaction melting thawing transpiration vaporization Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Contemporary Examples of liquefaction

Historical Examples of liquefaction

Word Origin and History for liquefaction

late 15c., from French liquéfaction, from Late Latin liquefactionem (nominative liquefactio), noun of action from past participle stem of liquefacere "to make liquid, melt" (see liquefy).

Online Etymology Dictionary, © 2010 Douglas Harper

liquefaction in Medicine


  1. The process of liquefying.
  2. The state of being liquefied.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

liquefaction in Science


  1. Chemistry The act or process of turning a gas into a liquid. Liquefaction is usually achieved by compression of vapors (provided the temperature of the gas is below the critical temperature), by refrigeration, or by adiabatic expansion.
  2. Geology The process by which sediment that is very wet starts to behave like a liquid. Liquefaction occurs because of the increased pore pressure and reduced effective stress between solid particles generated by the presence of liquid. It is often caused by severe shaking, especially that associated with earthquakes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.