Dictionary
macronutrient
noun mac·ro·nu·tri·ent \-ˈnü-trē-ənt, -ˈnyü-\
Definition of MACRONUTRIENT
1
: a chemical element (as nitrogen, phosphorus, or potassium) of which relatively large quantities are essential to the growth and health of a plant
2
: a substance (as protein or carbohydrate) essential in large amounts to the growth and health of an animal — compare micronutrient 2
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First Known Use of MACRONUTRIENT
1942
Medical Dictionary
macronutrient
noun mac·ro·nu·tri·ent \-ˈn(y)ü-trē-ənt\
Medical Definition of MACRONUTRIENT
: a chemical element or substance (as protein, carbohydrate, or fat) required in relatively large quantities in nutrition
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