onychodystrophy
n. 指甲营养不良
例句
Proband also had special clinical feature including follicular hyperkeratosis on the elbows and knees, and onychodystrophy of 20 nails as well.
先证者双肘膝关节毛囊角化性丘疹,足趾及跖部灶性胼胝样角化过度,20甲营养不良。