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indurate

 - 2 dictionary results

in⋅du⋅rate

[v. in-doo-reyt, -dyoo-; adj. in-doo-rit, -dyoo-; in-door-it, -dyoor-] verb, -rat⋅ed, -rat⋅ing, adjective
–verb (used with object)
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)
5. to become hard; harden.
6. to become established or confirmed.
–adjective
7. hardened; unfeeling; callous; inured.

Origin:
1375–1425; late ME indurat < L indūrātus ptp. of indūrāre to harden. See in- 2 , dure 1 , -ate 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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in·du·rate   (ĭn'də-rāt', -dyə-)   
v.   in·du·rat·ed, in·du·rat·ing, in·du·rates

v.   tr.
  1. To make hard; harden: soil that had been indurated by extremes of climate.

  2. To inure, as to hardship or ridicule.

  3. To make callous or obdurate: "It is the curse of revolutionary calamities to indurate the heart" (Helen Maria Williams).

v.   intr.
  1. To grow hard; harden.

  2. To become firmly fixed or established.

adj.   (ĭn'dŏŏ-rĭt, -dyə-)
Hardened; obstinate; unfeeling.

[Latin indūrāre, indūrāt- : in-, intensive pref.; see in-2 + dūrus, hard; see deru- in Indo-European roots.]
in'du·ra'tive adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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