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deteriorate

[dih-teer-ee-uh-reyt] /dɪˈtɪər i əˌreɪt/
verb (used with object), verb (used without object), deteriorated, deteriorating.
1.
to make or become worse or inferior in character, quality, value, etc.
2.
to disintegrate or wear away.
Origin
1565-1575
1565-75; < Late Latin dēteriōrātus made worse (past participle of dēteriōrāre), equivalent to Latin dēterior worse ( from + -ter- formative in adjectives of spatial orientation (cf. exterior, interior) + -ior comparative suffix) + -ātus -ate1
Related forms
deteriorative, adjective
undeteriorated, adjective
undeteriorating, adjective
undeteriorative, adjective
Synonyms
1. degenerate, decline, worsen.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for un deteriorated

deteriorate

/dɪˈtɪərɪəˌreɪt/
verb
1.
to make or become worse or lower in quality, value, character, etc; depreciate
2.
(intransitive) to wear away or disintegrate
Derived Forms
deterioration, noun
deteriorative, adjective
Word Origin
C16: from Late Latin dēteriōrāre, from Latin dēterior worse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for un deteriorated

deteriorate

v.

1640s (as a past participle adjective, 1570s), from Late Latin deterioratus, past participle of deteriorare "get worse, make worse," from Latin deterior "worse, lower, inferior, meaner," contrastive of *deter "bad, lower," from PIE *de-tero-, from demonstrative stem *de- (see de). Originally transitive in English; intransitive sense is from 1758. Related: Deteriorated; deteriorating.

Online Etymology Dictionary, © 2010 Douglas Harper
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un deteriorated in Medicine

deteriorate de·te·ri·o·rate (dĭ-tēr'ē-ə-rāt')
v. de·te·ri·o·rat·ed, de·te·ri·o·rat·ing, de·te·ri·o·rates

  1. To grow worse in function or condition.

  2. To weaken or disintegrate.

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