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CALCIFEROL

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cal⋅cif⋅er⋅ol

[kal-sif-uh-rawl, -rol]
–noun Biochemistry.
a fat-soluble, crystalline, unsaturated alcohol, C28H43OH, 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:
1930–35; calcif(erous) + (ergost)erol
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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cal·cif·er·ol   (kāl-sĭf'ə-rôl', -rōl')   
n.  See vitamin D2.

[calcifer(ous) + -ol1.]
vitamin D2  
n.  A white crystalline compound, C28H44O, produced by ultraviolet irradiation of ergosterol. Also called calciferol, ergocalciferol.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: cal·cif·er·ol
Pronunciation: kal-'sif-&-"rol, -"rOl
Function: noun
: an alcohol C28H43OH usuallyprepared by irradiation of ergosterol and used as a dietary supplement in nutrition and medicinally especially in the control of rickets called also ergocalciferol, viosterol, vitaminD, vitamin D2; —see DRISDOL
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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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