rickets

詳細解釋：

rick.ets

n.(used with a sing. or pl. verb)（名詞）（與單數或複數動詞連用）
A deficiency disease resulting from a lack of vitamin D or calcium and from insufficient exposure to sunlight, characterized by defective bone growth and occurring chiefly in children.Also called rachitis
佝僂病，軟骨病：由缺乏維生素D或鈣及日曬不足導致的缺陷疾病，症狀為有缺陷的骨質發育，主要發生於兒童中也作 rachitis

來源：
[Origin unknown]
[語源未知]