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calciferol

[kal-sif-uh-rawl, -rol] /kælˈsɪf əˌrɔl, -ˌrɒl/
noun, Biochemistry
1.
a fat-soluble, crystalline, unsaturated alcohol, C 28 H 43 OH, occurring in milk, fish-liver oils, etc., produced by ultraviolet irradiation of ergosterol, and used as a dietary supplement, as in fortified milk.
Also called vitamin D2.
Origin
1930-1935
1930-35; calcif(erous) + (ergost)erol
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for calciferol
  • Also called calciferol vitamin noun chemical substance that is necessary for health.
British Dictionary definitions for calciferol

calciferol

/kælˈsɪfərɒl/
noun
1.
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 Also vitamin D2
Word Origin
C20: from calcif(erous + ergost)erol
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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calciferol in Medicine

calciferol cal·cif·er·ol (kāl-sĭf'ə-rôl', -rōl')
n.
See vitamin D2.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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calciferol in Science
calciferol
  (kāl-sĭf'ə-rôl', -rōl')   
Any of several sterols that are forms of vitamin D, especially ergocalciferol (vitamin D2) and cholecalciferol (vitamin D3). See more at vitamin D.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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