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2017 Word of the Year

koilonychia

[koi-loh-nik-ee-uh] /ˌkɔɪ loʊˈnɪk i ə/
noun, Medicine/Medical.
1.
an abnormal condition in which the outer surfaces of the nails are concave; spoon nail.
Origin of koilonychia
1900-1905
1900-05; < Greek koîl(os) hollow + onych- (stem of ónyx nail; see onyx) + -ia
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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koilonychia in Medicine

koilonychia koi·lo·nych·i·a (koi'lō-nĭk'ē-ə)
n.
A nail deformity characterized by concavity of the outer surface of the nail. Also called celonychia, spoon nail.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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