[ dis-in-tuh-grey-shuh n ]
/ dɪsˌɪn təˈgreɪ ʃən /


the act or process of disintegrating.
Physics. decay(def 8).

Nearby words

  1. disinherit,
  2. disinhibition,
  3. disinhume,
  4. disinsertion,
  5. disintegrate,
  6. disintegration constant,
  7. disinter,
  8. disinterest,
  9. disinterested,
  10. disintermediation

Origin of disintegration

First recorded in 1790–1800; disintegrate + -ion

Related formsnon·dis·in·te·gra·tion, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for disintegrations

Word Origin and History for disintegrations



1796, noun of action from disintegrate.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for disintegrations


[ dĭs-ĭn′tĭ-grāshən ]


The breaking up of the component parts of a substance, as in catabolism or decay.
The disorganization or disruption of mental processes in mental illness.
The natural or induced transformation of an atomic nucleus from a more massive to a less massive configuration by the emission of particles or radiation.
Related formsdis•inte•grate′ v.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.