• synonyms


verb (used with object), va·por·ized, va·por·iz·ing.
  1. to cause to change into vapor.
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verb (used without object), va·por·ized, va·por·iz·ing.
  1. to become converted into vapor.
  2. to indulge in boastful talk; speak braggingly.
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Also especially British, va·por·ise.

Origin of vaporize

First recorded in 1625–35; vapor + -ize
Related formsva·por·iz·a·ble, adjectivere·va·por·ize, verb, re·va·por·ized, re·va·por·iz·ing.un·va·por·ized, adjective
Can be confusedevanesce evaporate liquefy melt thaw transpire vaporize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for vaporise

Historical Examples

  • The heat supplied to the chamber must be sufficient to vaporise the oil, but not great enough to decompose it.

    Gas and Oil Engines, Simply Explained

    Walter C. Runciman

  • You may fuse iron, vaporise water, intermix the gases; but the molecules of all change little in such metamorphosis.

    The Crack of Doom

    Robert Cromie

British Dictionary definitions for vaporise



  1. to change or cause to change into vapour or into the gaseous state
  2. to evaporate or disappear or cause to evaporate or disappear, esp suddenly
  3. to destroy or be destroyed by being turned into a gas as a result of extreme heat (for example, generated by a nuclear explosion)
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Derived Formsvaporizable or vaporisable, adjectivevaporization or vaporisation, noun
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 vaporise



1630s, from vapor + -ize. Originally "smoke tobacco;" later "convert into vapor" (1803), and "spray with fine mist" (1900). Related: Vaporized; vaporizing.

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Online Etymology Dictionary, © 2010 Douglas Harper

vaporise in Medicine


  1. To convert or be converted into a vapor.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.