micronutrient

micronutrient definition - medical

mi·cro·nu·tri·ent (mīˌkrō-no͞oˈtrē-ənt)

noun
A substance, such as a vitamin or mineral, that is essential in minute amounts for the proper growth and metabolism of a living organism.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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