from The American Heritage® Dictionary of the English Language, 4th Edition

  • intransitive v. To swell or expand; enlarge.
  • intransitive v. To bubble up, especially from the effect of heating.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To swell or enlarge (abnormally)
  • v. To bubble up (as the result of heating)

from the GNU version of the Collaborative International Dictionary of English

  • intransitive v. To enlarge or expand with heat; to swell; specifically, to swell up or bubble up under the action of heat, as before the blowpipe.

from The Century Dictionary and Cyclopedia

  • To enlarge or expand, as with heat; swell up; become tumid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. expand abnormally
  • v. move upwards in bubbles, as from the effect of heating; also used metaphorically


from The American Heritage® Dictionary of the English Language, 4th Edition

Latin intumēscere : in-, intensive pref.; see in-2 + tumēscere, to begin to swell, inchoative of tumēre, to swell; see teuə- in Indo-European roots.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin intumēscō.


  • The first two are evident, as when it fuses it runs into a globule; the last, by inspecting it before and after the heating with a magnifying glass; sometimes it froths up when heated, and is then said to "intumesce;" or, if it flies to fragments, "decrepitates."

    Scientific American Supplement, No. 344, August 5, 1882

  • Upon exposure to fire, the material begins to intumesce (expand rapidly) in response to heat by beginning a process of evaporative cooling and charring on the surface of the coating.

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  • I looked downbound at myself - but because it was so Stygian in m shack I could wager null another than the lightning gleaming cloth reaching from my intumesce button.

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  • By limiting your venture you module never hit a rattling intense intumesce ache.



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