[in-doo-rey-shuh n, -dyoo-]


the act of indurating.
the state of being indurated.
  1. lithification.
  2. hardening of rock by heat or pressure.
  1. a hardening of an area of the body as a reaction to inflammation, hyperemia, or neoplastic infiltration.
  2. an area or part of the body that has undergone such a reaction.

Origin of induration

1350–1400; Middle English < Late Latin indūrātiōn- (stem of indūrātiō) a hardening. See indurate, -ion
Related formsin·du·ra·tive, adjectivenon·in·du·ra·tive, adjectiveun·in·du·ra·tive, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for induration

Historical Examples of induration

Word Origin and History for induration

late 14c., from Old French induracion "hardness, obstinacy" (14c.) or directly from Medieval Latin indurationem (nominative induratio) "hardness (especially of the heart)," noun of action from indurare (see endure).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for induration


[ĭn′də-rāshən, -dyə-]


The hardening of a normally soft tissue or organ, especially the skin, because of inflammation, infiltration of a neoplasm, or an accumulation of blood.
A focus or region of abnormally hardened tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.