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Webster's New World College Dictionary » vitamin D
vitamin D
vitamin D definition
vitamin D
any of several fat-soluble vitamins that are essential for increased absorption of calcium and phosphorus from the intestinal tract, found in fish-liver oils, milk, egg yolk, etc. or produced by irradiation of provitamins; specif.,: a deficiency of vitamin D tends to cause rickets
- vitamin D
- vitamin D
- vitamin D, CHOH, produced by irradiation of a derivative of ergosterol
- vitamin D, CHOH, produced by irradiation of a derivative of sitosterol
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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