[mahy-kroh-noo-tree-uh nt, -nyoo-]
- an essential nutrient, as a trace mineral or vitamin, that is required by an organism in minute amounts.
Origin of micronutrient
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- any substance, such as a vitamin or trace element, essential for healthy growth and development but required only in minute amounts
- 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® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.