Specifically a chemical element that is present or required in relatively large amounts; (Biology) = "macronutrient"; (Geology) an element that constitutes more than 5 per cent of a rock.
Origin
1950s.
Definition of major element in US English:
major element
noun
Specifically a chemical element that is present or required in relatively large amounts; (Biology) = "macronutrient"; (Geology) an element that constitutes more than 5 per cent of a rock.