macronutrient

noun

mac·​ro·​nu·​tri·​ent ˌma-krō-ˈnü-trē-ənt How to pronounce macronutrient (audio)
-ˈnyü-
: a chemical element or substance (such as potassium or protein) that is essential in relatively large amounts to the growth and health of a living organism compare micronutrient

Examples of macronutrient in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Inorganic fertilizers are usually less expensive than organic fertilizers and provide all the macronutrients roses need to thrive. Mary Marlowe Leverette, Southern Living, 6 Mar. 2026 These combinations offer an ideal macronutrient balance that supports muscle health and helps maintain a feeling of fullness. Leeann Weintraub, Daily News, 5 Mar. 2026 That means prioritizing quality sleep, sufficient calories, and enough macronutrients to support repair and growth. Danielle Zickl, Health, 26 Feb. 2026 Pineapple is a source of macronutrients, micronutrients (vitamins and minerals), and fiber. Brittany Lubeck, Verywell Health, 23 Feb. 2026 See All Example Sentences for macronutrient

Word History

Etymology

macro- + nutrient entry 2

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of macronutrient was in 1942

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Cite this Entry

“Macronutrient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macronutrient. Accessed 10 Mar. 2026.

Medical Definition

macronutrient

noun
mac·​ro·​nu·​tri·​ent -ˈn(y)ü-trē-ənt How to pronounce macronutrient (audio)
: a substance (as a protein, carbohydrate, or fat) required in relatively large quantities for growth, energy, and health compare micronutrient

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