noun ダウンロード 🔗共有 くる病 A disorder of infancy and early childhood caused by a deficiency of vitamin D, causing soft bones. Examples : "The doctor said the child's bowed legs were a sign of rickets, likely caused by not getting enough vitamin D. " 医者は、子供のO脚はくる病の兆候であり、ビタミンDの摂取不足が原因である可能性が高いと述べた。 medicine disease body physiology biochemistry anatomy condition science biology AIとチャット語彙ゲーム読解練習