A major chemical element essential for normal growth and development. In tissue culture media, macronutrients are those required in concentrations above 0.5 millimole/litre.

Glossary of Biotechnology for Food and Agriculture . 2015.

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  • macronutrient — [mak΄rəno͞o′trē ənt] n. [ MACRO + NUTRIENT] any of the chemical elements, as carbon, required in relatively large quantities for plant growth …   English World dictionary

  • macronutrient — noun Date: 1942 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… …   New Collegiate Dictionary

  • macronutrient — /mak roh nooh tree euhnt, nyooh /, n. 1. Nutrition. any of the nutritional components of the diet that are required in relatively large amounts: protein, carbohydrate, fat, and the macrominerals. 2. Bot. any of the three chemical elements… …   Universalium

  • macronutrient — noun Any of the elements required in large amounts by all living things …   Wiktionary

  • macronutrient — mac·ro·nu·tri·ent n(y)ü trē ənt n a chemical element or substance (as protein, carbohydrate, or fat) required in relatively large quantities in nutrition * * * mac·ro·nu·tri·ent (mak″ro nooґtre ənt) an essential nutrient required in a… …   Medical dictionary

  • macronutrient — mækrəʊ nuːtrɪənt / nju n. nutritious substance of which plants need a large amount to grow …   English contemporary dictionary

  • macronutrient — noun Biology a substance required in relatively large amounts by living organisms …   English new terms dictionary

  • macronutrient —   Chemical compound required for plant growth in relatively large quantities, e.g. nitrogen, phosphorus, potassium.   Cf. micronutrient …   Expanded glossary of Cycad terms

  • macronutrient — mac·ro·nutrient …   English syllables

  • macronutrient — mac•ro•nu•tri•ent [[t]ˌmæk roʊˈnu tri ənt, ˈnyu [/t]] n. 1) nut any of the nutritional components required in relatively large amounts: protein, carbohydrate, fat, and the essential minerals 2) bot any of the chemical elements required by plants… …   From formal English to slang

  • macronutrient — /mækroʊˈnjutriənt/ (say makroh nyoohtreeuhnt) noun a substance, as oxygen, hydrogen, etc., required in large amounts, for good health. Compare micronutrient …  

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