| 释义 |
macronutrientenUK
mac·ro·nu·tri·ent M0015900 (măk′rō-no͞o′trē-ənt, -nyo͞o′-)n. A substance required in relatively large amounts for the normal growth and development of an organism. Macronutrients for animals include fat, carbohydrate, and protein, while for most plants they include chemical elements such as carbon, hydrogen, oxygen, nitrogen, and phosphorus.macronutrient (ˌmækrəʊˈnjuːtrɪənt) n (Biochemistry) any substance, such as carbon, hydrogen, or oxygen, that is required in large amounts for healthy growth and developmentmac•ro•nu•tri•ent (ˌmæk roʊˈnu tri ənt, -ˈnyu-)
n. 1. any of the nutritional components required in relatively large amounts: protein, carbohydrate, fat, and the essential minerals. 2. any of the chemical elements required by plants in relatively large amounts: nitrogen, phosphorus, and potassium. [1940–45] macronutrient - One required in relatively large amounts by organisms, e.g. carbohydrates, fats, and proteins.See also related terms for organism.macronutrientenUK
macronutrient[¦mak·rō′nü·trē·ənt] (biochemistry) An element required by animals or plants in large amounts. macronutrientenUK
macronutrient [mak″ro-noo´tre-ent] an essential nutrient that has a large minimal daily requirement, including proteins, fats, carbohydrates, and water. The term sometimes specifically includes, and sometimes specifically excludes, minerals required in amounts greater than 100 mg daily: calcium, chloride, magnesium, potassium, phosphorus, sodium, and sulfur.macronutrient (măk′rō-no͞o′trē-ənt, -nyo͞o′-)n. A substance required in relatively large amounts for the normal growth and development of an organism. Macronutrients for animals include fat, carbohydrate, and protein, while for most plants they include chemical elements such as carbon, hydrogen, oxygen, nitrogen, and phosphorus.macronutrient A general term for an essential dietary component—protein, essential fats and carbohydrates—which is consumed in large amounts.macronutrient Nutrition An essential dietary component—proteins, fats, carbohydrates consumed in large amounts. See Diet. Cf Micronutrient, Non-nutritive dietary component. mac·ro·nu·tri·ent (mak'rō-nū'trē-ĕnt) Nutrients required in the greatest amount; e.g., carbohydrates, protein, fats. macronutrient any element required in large quantities for growth, such as nitrogen or potassium in plants. Compare MICRONUTRIENT. |