• synonyms


[dih-teer-ee-uh-rey-shuh n]
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  1. the act or process of deteriorating.
  2. the state or condition of having deteriorated.
  3. a gradual decline, as in quality, serviceability, or vigor.
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Origin of deterioration

1650–60; < Late Latin dēteriōrātiōn- (stem of dēteriōrātiō), equivalent to dēteriōrāt(us) (see deteriorate) + -iōn- -ion
Related formsnon·de·te·ri·o·ra·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for deterioration


1650s, possibly a native formation, or else from French détérioration (15c.), noun of action from détériorer, from Late Latin deteriorare (see deteriorate).

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Online Etymology Dictionary, © 2010 Douglas Harper

deterioration in Medicine


  1. The process or condition of becoming worse.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.