MACRONUTRIENT
- A chemical element (e.g., potassium, magnesium, calcium) required in large amounts for plant growth and development
- A substance required in relatively large amounts by living organisms, in particular
- A type of food (e.g., fat, protein, carbohydrate) required in large amounts in the human diet
- a chemical element (as nitrogen, phosphorus, or potassium) of which relatively large quantities are essential to the growth and health of a plant [n -S]