Definition of cholecalciferol in English:

cholecalciferol

noun ˌkɒlɪkalˈsɪf(ə)rɒlˌkōləˌkalˈsifəˌrôl

mass nounBiochemistry

One of the D vitamins, a sterol essential for the deposition of calcium in bones and formed by the action of sunlight on dehydrocholesterol in the skin.
Also called "vitamin D3"
Example sentencesExamples
- The kidney is involved in the first step in metabolism of cholecalciferol to calcidiol, the form in which it is stored, and the liver in the final conversion to the active hormone calcitriol.
- The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7-dehydrocholesterol to cholecalciferol.
- Both groups received cholecalciferol and calcium carbonate oral supplementation.
- All patients received 800 IU of cholecalciferol and 1,000 mg of calcium carbonate.
- Vitamin D in the form of cholecalciferol reduces the risk of a first osteoporotic fracture in older people by about a quarter, but only when prescribed at a relatively high dose, say researchers from the United States.

Definition of cholecalciferol in US English:

cholecalciferol

nounˌkōləˌkalˈsifəˌrôl

Biochemistry

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.
〔生化〕胆钙化（甾）醇。亦称 vitamin D₃
Also called "vitamin D3" (see vitamin D)
Example sentencesExamples
- All patients received 800 IU of cholecalciferol and 1,000 mg of calcium carbonate.
- The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7-dehydrocholesterol to cholecalciferol.
- Both groups received cholecalciferol and calcium carbonate oral supplementation.
- The kidney is involved in the first step in metabolism of cholecalciferol to calcidiol, the form in which it is stored, and the liver in the final conversion to the active hormone calcitriol.
- Vitamin D in the form of cholecalciferol reduces the risk of a first osteoporotic fracture in older people by about a quarter, but only when prescribed at a relatively high dose, say researchers from the United States.

词汇	cholecalciferol
释义	Definition of cholecalciferol in English: cholecalciferol noun ˌkɒlɪkalˈsɪf(ə)rɒlˌkōləˌkalˈsifəˌrôl mass nounBiochemistry One of the D vitamins, a sterol essential for the deposition of calcium in bones and formed by the action of sunlight on dehydrocholesterol in the skin. Also called "vitamin D3" Example sentencesExamples The kidney is involved in the first step in metabolism of cholecalciferol to calcidiol, the form in which it is stored, and the liver in the final conversion to the active hormone calcitriol. The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7-dehydrocholesterol to cholecalciferol. Both groups received cholecalciferol and calcium carbonate oral supplementation. All patients received 800 IU of cholecalciferol and 1,000 mg of calcium carbonate. Vitamin D in the form of cholecalciferol reduces the risk of a first osteoporotic fracture in older people by about a quarter, but only when prescribed at a relatively high dose, say researchers from the United States. Definition of cholecalciferol in US English: cholecalciferol nounˌkōləˌkalˈsifəˌrôl Biochemistry 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. 〔生化〕胆钙化（甾）醇。亦称 vitamin D₃ Also called "vitamin D3" (see vitamin D) Example sentencesExamples All patients received 800 IU of cholecalciferol and 1,000 mg of calcium carbonate. The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7-dehydrocholesterol to cholecalciferol. Both groups received cholecalciferol and calcium carbonate oral supplementation. The kidney is involved in the first step in metabolism of cholecalciferol to calcidiol, the form in which it is stored, and the liver in the final conversion to the active hormone calcitriol. Vitamin D in the form of cholecalciferol reduces the risk of a first osteoporotic fracture in older people by about a quarter, but only when prescribed at a relatively high dose, say researchers from the United States.
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