mac·ro·nu·tri·ent (m k r -n  tr - nt, -ny-)n. An element, such as carbon, hydrogen, oxygen, or nitrogen, required in large proportion for the normal growth and development of a plant. |
macronutrient [ˌmækrəʊˈnjuːtrɪənt]
n
(Life Sciences & Allied Applications / Biochemistry) any substance, such as carbon, hydrogen, or oxygen, that is required in large amounts for healthy growth and development
macronutrient - One required in relatively large amounts by organisms, e.g. carbohydrates, fats, and proteins.
See also related terms for organism.
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