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  1. cholecalciferol

    • IPA[ˌkōləˌkalˈsifərôl]

    美式

    • n.
      one of the D vitamins, a sterol that is formed by the action of sunlight on dehydrocholesterol in the skin. Deficiency of this vitamin affects calcium levels, causing rickets in children and osteomalacia in adults.
    • noun: cholecalciferol