onychoatrophy

例句：

1. 1. The patient's nails were severely thinned due to the lack of nutrition.
   由于营养不足，患者的指甲严重变薄。
2. 2. The doctor diagnosed the patient with anonychoatrophy after examining her nails.
   医生在检查了她的指甲后诊断出患者患有指甲营养不良症。
3. 3. The condition is often associated with poor diet and lack of vitamins in the diet.
   这种状况通常与饮食不良和饮食中缺乏维生素有关。