cholecalciferol

American  

[koh-luh-kal-sif-uh-rawl, -rol, kol-uh-] / ˌkoʊ lə kælˈsɪf əˌrɔl, -ˌrɒl, ˌkɒl ə- /

noun

1. vitamin D.

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cholecalciferol British  

/ ˌkəʊlɪkælˈsɪfəˌrɒl /

noun

1. Also: vitamin D3.  a compound occurring naturally in fish-liver oils, used to treat rickets. Formula: C 27 H 44 O See also calciferol

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cholecalciferol Scientific  

/ kō′lĭ-kăl-sĭf′ə-rôl′,-rōl′ /

1. See vitamin D ₃

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Etymology

Origin of cholecalciferol

First recorded in 1930–35; chole- + calci- + -fer + -ol ¹

Example Sentences

In the liver, cholecalciferol is converted to an intermediate that travels to the kidneys and is further converted to calcitriol, the active form of vitamin D3.

From Textbooks • Jun. 19, 2013

When cholesterol present in the epidermis is exposed to ultraviolet radiation, it is converted to cholecalciferol, which then enters the blood.

From Textbooks • Jun. 19, 2013

In the presence of sunlight, a form of vitamin D3 called cholecalciferol is synthesized from a derivative of the steroid cholesterol in the skin.

From Textbooks • Jun. 19, 2013

This would be equivalent to a 110-pound adult taking 176,000,000 IU or 440,000 of the 400 unit cholecalciferol capsules.

From New York Times • Feb. 1, 2010