WordReference Random House Unabridged Dictionary of American English © 2026
dis•in•te•gra•tion
(dis in′tə grā′shən),USA pronunciation n.
WordReference Random House Learner's Dictionary of American English © 2026- the act or process of disintegrating.
- Physicsdecay (def. 8).
- disintegrate + -ion 1790–1800
dis•in•te•grate /dɪsˈɪntəˌgreɪt/USA pronunciation
v., -grat•ed, -grat•ing.
WordReference Random House Unabridged Dictionary of American English © 2026- to (cause to) lose solidness or strength; (cause to) break up or fall apart: [no object]At that speed the plane began to disintegrate.[~ + object]The bullets tearing into the house disintegrated the flimsy walls.
dis•in•te•grate
(dis in′tə grāt′),USA pronunciation v., -grat•ed, -grat•ing.
v.i.
v.t.
dis•in•te•gra•ble
(dis in′tə grə bəl),USA pronunciation adj.
dis•in′te•gra′tive, dis•in•te•gra•to•ry
(dis in′tə grə tôr′ē, -tōr′ē, -grā′tə rē),USA pronunciation adj.
dis•in′te•gra′tor, n.
v.i.
- to separate into parts or lose intactness or solidness; break up;
deteriorate:The old book is gradually disintegrating with age. - [Physics.]
- to decay.
- (of a nucleus) to change into one or more different nuclei after being bombarded by high-energy particles, as alpha particles or gamma rays.
v.t.
- to reduce to particles, fragments, or parts;
break up or destroy the cohesion of:Rocks are disintegrated by frost and rain.
- dis-1 + integrate 1790–1800
- 1. 3. . See decay.
'disintegration' also found in these entries (note: many are not synonyms or translations):
artificial disintegration
- becquerel
- break up
- decay
- dissolution
- fragmentation
- haemolysis
- haemolytic
- histolysis
- Pott's disease
- radioactive decay
- Russia
- Soddy
- Tunguska
- ulcer
- abscission layer
- bacteriolysis
- bacteriophage
- biolysis
- breakup
- chromatolysis
- crackup
- decay constant
- development
- differential weathering
- disintegration constant
- dissipation
- dissoluble
- dust
- emanation
- erode
- fibrinolysis
- liverwort
- lysin
- neurolysis
- photodisintegration
- powder
- radiothorium
- resolve
- ruin
- thoron
- waste
- weather
- slake
- stability