koilonychia

koilonychia

[koi-loh-nik-ee-uh]
noun Medicine/Medical.
an abnormal condition in which the outer surfaces of the nails are concave; spoon nail.

Origin:
1900–05; < Greek koîl(os) hollow + onych- (stem of ónyx nail; see onyx) + -ia

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Medical Dictionary

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
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