[verb in-doo-reyt, -dyoo-; adjective in-doo-rit, -dyoo-; in-doo r-it, -dyoo r-]
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verb (used with object), in·du·rat·ed, in·du·rat·ing.
  1. to make hard; harden, as rock, tissue, etc.: Cold indurates the soil.
  2. to make callous, stubborn, or unfeeling: transgressions that indurate the heart.
  3. to inure; accustom: to indurate oneself to privation and suffering.
  4. to make enduring; confirm; establish: to indurate custom through practice.
verb (used without object), in·du·rat·ed, in·du·rat·ing.
  1. to become hard; harden.
  2. to become established or confirmed.
  1. hardened; unfeeling; callous; inured.

Origin of indurate

1375–1425; late Middle English indurat < Latin indūrātus past participle of indūrāre to harden. See in-2, dure1, -ate1
Related formsnon·in·du·rat·ed, adjectivesem·i-in·du·rate, adjectivesem·i-in·du·rat·ed, adjectiveun·in·du·rate, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of indurated

British Dictionary definitions for indurated


verb (ˈɪndjʊˌreɪt)
  1. to make or become hard or callous
  2. to make or become hardy
adjective (ˈɪndjʊrɪt)
  1. hardened, callous, or unfeeling
Derived Formsinduration, nounindurative, adjective

Word Origin for indurate

C16: from Latin indūrāre to make hard; see endure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for indurated



1530s, from Latin induratus, past participle of indurare "to make hard, harden" (see endure). Related: Indurated.

Online Etymology Dictionary, © 2010 Douglas Harper

indurated in Medicine


[ĭndə-rā′tĭd, -dyə-]
  1. Hardened, as a soft tissue that becomes extremely firm.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.