induration

American  

[in-doo-rey-shuhn, -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.

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Other Word Forms

• indurative adjective
• nonindurative adjective
• unindurative adjective

Etymology

Origin of induration

1350–1400; Middle English < Late Latin indūrātiōn- (stem of indūrātiō ) a hardening. See indurate, -ion

Example Sentences

In the initial stage there is a localised induration in the palm opposite the metacarpo-phalangeal joint, and the skin over it is puckered and closely adherent to the underlying fascia.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander

The profession considers ulceration and induration of the uterus incurable.

From New, Old, and Forgotten Remedies: Papers by Many Writers by Anshutz, Edward Pollock

This tuff is porous; and, when first excavated, is soft and easily worked, but acquires a considerable degree of induration on exposure to the air.

From Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology by Lyell, Charles, Sir

Simple ulcers and fissures are usually recognised by the history of the condition, the absence of induration and of glandular involvement, and by the fact that they heal quickly on removal of the cause.

From Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. by Miles, Alexander

Continuation of the processes of induration produces subbituminous coal, or black lignite, which is usually black and sometimes has a fairly bright luster.

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)