koilonychian.
/kɔɪləʊˈnɪkɪə/ Pathology.
A condition of the finger-nails in which the outer surfaces are concave instead of convex; spoon-nail.
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the world > health and disease > ill health > a disease > disorders of visible parts > disorders of nails > [noun]
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1902 Trans. Med. Assoc. Missouri XLV. 157 The disease..is known technically as koilonychia and ordinarily as ‘spoon’ nails... Koilonychia may be observed in one or more of the nails of the fingers of one or both hands.
1934 J. M. Vaughan Anaemias iii. 43 Koilonychia is not found in ‘splenic anaemia’, while some degree is extremely common in idiopathic hypochromic anaemia.
1970 Jrnl. Pediatrics 77 1057/2 There is a significant correlation between koilonychia and iron deficiency in infants 9 to 13 months of age.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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n.1902