an abnormal condition in which the outer surfaces of the nails are concave; spoon nail.
Origin of koilonychia
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A nail deformity characterized by concavity of the outer surface of the nail.celonychia spoon nail
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.