柯林斯詞典calciferol /k?l?s?f?r?l/ 1. N a fat-soluble steroid, found esp in fish-liver oils, produced by the action of ultraviolet radiation on ergosterol. It increases the absorption of calcium from the intestine and is used in the treatment of rickets. Formula: C28H43OH 鈣化醇 (See also vitamin D) 返回 calciferol