vitamin D


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Related to vitamin D: vitamin D3, Vitamin D deficiency

vitamin D

n.
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.

vitamin D2

n.
A white crystalline compound, C28H44O, produced commercially by ultraviolet irradiation of ergosterol obtained from fungi or plants, and used as a dietary supplement. Also called ergocalciferol.

vitamin D3

n.
A colorless crystalline compound, C27H44O, 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. Also called cholecalciferol.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vitamin D

n, pl D vitamins
(Biochemistry) any of the fat-soluble vitamins, including calciferol and cholecalciferol, occurring in fish-liver oils (esp cod-liver oil), milk, butter, and eggs: used in the treatment of rickets and osteomalacia
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

vitamin D


n.
any of the several fat-soluble, antirachitic vitamins D1, D2, D3, occurring in milk and fish-liver oils, esp. cod and halibut: essential for the formation of normal bones and teeth.
[1920–25]

vitamin D1


n.
a form of vitamin D obtained by ultraviolet irradiation of ergosterol.
[1930–35]

vitamin D2


n.
[1930–35]

vitamin D3


n.
a form of vitamin D, C27H43OH, occurring in fish-liver oils, that differs from vitamin D2 by slight structural differences in the molecule. Also called cholecalciferol.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

vitamin D

Any of a group of vitamins necessary for normal bone growth. Vitamin D is found in milk, fish, and eggs and can be produced in the skin on exposure to sunlight.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.vitamin D - a fat-soluble vitamin that prevents ricketsvitamin D - a fat-soluble vitamin that prevents rickets
ergosterol - a plant sterol that is converted into vitamin D by ultraviolet radiation
fat-soluble vitamin - any vitamin that is soluble in fats
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
[USA], Aug 14 (ANI): Doctors should not rely on 'one-size-fits-all' when prescribing vitamin D supplement as each patient has different requirements, suggests a study.
The VITAL trial we're looking at in this month's cover article on fish oil also looked at vitamin D's possible benefits when it comes to preventing cancer.
Among the history lessons, Vitamania addresses various controversial advancements in the world of vitamin production: food fortification, the development of the multivitamin and the current, prominent debate about the utility of vitamin D supplements.
It took a few years of vitamin D use for the reduction in cancer deaths to become clear.
Based on the new findings, "people already taking vitamin D or fish oil will feel there's no reason to stop," Manson said.
Calcium is one of the primary building blocks of bone, but vitamin D is also needed in order for the calcium to be absorbed; see the article on page 5 for more information about dietary sources of vitamin D.
RAISING AWARENESS: Salem Saeed al-Asmi talks about raising awareness concerning Vitamin D deficiency.
Important compounds for fighting illnesses like the flu or the common cold are antioxidants such as vitamin C, as well as vitamin D and the mineral zinc.
There is more and more evidence supporting the relationship between increased health risks and vitamin D insufficiency.
Most women know that it's crucial to get enough calcium and vitamin D in order to keep their bones strong, but there are some substances that can diminish bone density and increase your risk of osteoporosis.
Vitamin D deficiency is endemic to South Asia, and is associated with varied biochemical and clinical presentations.
Objective: To ascertain patients and physician views regarding hazard and compliance of oral liquid Vitamin D glass ampoule and tablets.