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单词 macronutrient
释义

WordReference Random House Unabridged Dictionary of American English © 2024
mac•ro•nu•tri•ent  (mak′rō no̅o̅trē ənt, -nyo̅o̅-),USA pronunciation n. 
  1. Nutritionany of the nutritional components of the diet that are required in relatively large amounts: protein, carbohydrate, fat, and the macrominerals.
  2. Botanyany of the three chemical elements required by plants in relatively large amounts: nitrogen, phosphorus, and potassium. Cf. micronutrient. 
  • macro- + nutrient 1940–45

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