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induration

[in-doo-rey-shuh n, -dyoo-] /ˌɪn dʊˈreɪ ʃən, -dyʊ-/
noun
1.
the act of indurating.
2.
the state of being indurated.
3.
Geology.
  1. lithification.
  2. hardening of rock by heat or pressure.
4.
Pathology.
  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
1350-1400
1350-1400; Middle English < Late Latin indūrātiōn- (stem of indūrātiō) a hardening. See indurate, -ion
Related forms
indurative, adjective
nonindurative, adjective
unindurative, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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nonindurative in Medicine

induration in·du·ra·tion (ĭn'də-rā'shən, -dyə-)
n.

  1. The hardening of a normally soft tissue or organ, especially the skin, because of inflammation, infiltration of a neoplasm, or an accumulation of blood.

  2. 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.
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Encyclopedia Article for nonindurative

induration

hardening of rocks by heat or baking; also the hardening of sediments through cementation or compaction, or both, without the introduction of heat. The classic example is the rock called hornfels, which is formed at contacts with igneous intrusions and in which heat and fluids from the intruding magma reconstitute the original wall rock into a hardened, flinty rock with a dense texture; it also is commonly formed by induration of carbonate sedimentary rocks and shales.

Learn more about induration with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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