provitamin

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provitamin

 [pro-vi´tah-min]
a substance, e.g., ergosterol, from which the animal organism can form a vitamin.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pro·vi·ta·min

(prō-vī'tă-min),
A substance that can be converted into a vitamin; for example, β-carotene.
Farlex Partner Medical Dictionary © Farlex 2012

provitamin

(prō-vī′tə-mĭn)
n.
A vitamin precursor that the body converts to its active form through normal metabolic processes. Carotene, for example, is a provitamin of vitamin A.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

pro·vi·ta·min

(prō'vī'tă-min)
An inactive form of a vitamin that needs activation before it can be used by the body.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

provitamin

A substance that is converted in the body to a VITAMIN.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

pro·vi·ta·min

(prō'vī'tă-min)
An inactive form of a vitamin that needs activation before it can be used by the body.
Medical Dictionary for the Dental Professions © Farlex 2012