disintegrate

[dis-in-tuh-greyt]
verb (used without object), disintegrated, disintegrating.
1.
to separate into parts or lose intactness or solidness; break up; deteriorate: The old book is gradually disintegrating with age.
2.
Physics.
a.
to decay.
b.
(of a nucleus) to change into one or more different nuclei after being bombarded by high-energy particles, as alpha particles or gamma rays.
verb (used with object), disintegrated, disintegrating.
3.
to reduce to particles, fragments, or parts; break up or destroy the cohesion of: Rocks are disintegrated by frost and rain.

Origin:
1790–1800; dis-1 + integrate

disintegrable [dis-in-tuh-gruh-buhl] , adjective
disintegrative, disintegratory [dis-in-tuh-gruh-tawr-ee, -tohr-ee, -grey-tuh-ree] , adjective
disintegrator, noun
nondisintegrating, adjective


1, 3. See decay.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
disintegrate (dɪsˈɪntɪˌɡreɪt)
 
vb
1.  to break or be broken into fragments or constituent parts; shatter
2.  to lose or cause to lose cohesion or unity
3.  (intr) to lose judgment or control; deteriorate
4.  physics
 a.  to induce or undergo nuclear fission, as by bombardment with fast particles
 b.  another word for decay
 
dis'integrable
 
adj
 
disinte'gration
 
n
 
dis'integrative
 
adj
 
dis'integrator
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

disintegrate
1796, from dis- "do the opposite of" (see dis-) + integrate. Related: Disintegrated; disintegrating; disintegration.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Before these images, all words disintegrate and fall lifeless into the ashes.
The water should cloud, and some of the split peas will be intact while others
  will disintegrate.
Add the curry sauce and continue to cook rapidly, taking care that the
  watermelon does not disintegrate.
With no incentive to spend on upkeep, landlords let buildings disintegrate.
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