Vitamin-d meaning

A fat-soluble vitamin occurring in several forms, especially vitamin D2 or vitamin D3 , required for normal growth of teeth and bones, and produced in general by ultraviolet irradiation of sterols found in milk, fish, and eggs.
noun
0
0
A white crystalline compound, C28 H44 O, produced by ultraviolet irradiation of ergosterol.
noun
0
0
A colorless crystalline compound, C27 H44 O, found in fish-liver oils, irradiated milk, and all irradiated animal foodstuffs. It has essentially the same biological activity as vitamin D2 .
noun
0
0
Any of several fat-soluble vitamins that are essential for increased absorption of calcium and phosphorus from the intestinal tract, found in fish-liver oils, milk, egg yolk, etc. or produced by irradiation of provitamins.
  • Vitamin D2.
  • Vitamin D3.
  • Vitamin D4, C28H45OH, produced by irradiation of a derivative of ergosterol.
  • Vitamin D5, C29H47OH, produced by irradiation of a derivative of sitosterol.
noun
0
0
A fat-soluble vitamin occurring in several forms, especially vitamin D2 or vitamin D3 , that is required for normal growth of teeth and bones and is involved in many other metabolic processes, produced in the skin upon exposure to sunlight and present in fish, eggs, and fortified foods such as milk.
noun
0
0
Advertisement
A white crystalline compound, C28 H44 O, produced commercially by ultraviolet irradiation of ergosterol obtained from fungi or plants, and used as a dietary supplement.
noun
0
0
A colorless crystalline compound, C27 H44 O, found in fish, eggs, and fortified foods and formed in the skin of humans and other vertebrates upon exposure to ultraviolet radiation, as in sunlight. It is often used as a dietary supplement.
noun
0
0
Any of a group of fat-soluble sterols necessary for normal bone growth, especially vitamin D2 ( ergocalciferol ) and vitamin D3 ( cholecalciferol ). Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight. A deficiency of vitamin D in the diet causes rickets in children.
0
0
A white crystalline sterol produced by ultraviolet irradiation of ergosterol and also occurring naturally in fungi and some fish oils. Vitamin D2 is the form of vitamin D generally used as a dietary supplement. Also called calciferol, ergocalciferol. Chemical formula: C28H44O.
0
0
A colorless, crystalline steroid hormone that the body synthesizes in the skin when its precursor, a derivative of cholesterol, is irradiated by sunlight. Vitamin D3 is also found in fish-liver oils, irradiated milk, and all irradiated animal foodstuffs. Also called calciferol, cholecalciferol. Chemical formula: C27H44O.
0
0
Advertisement