macronutrient

https://doi.org/10.1351/goldbook.14825
Imprecise term referring to a nutrient required for survival, or present in biological fluids or compartments at a level easily measured by existing analytical techniques.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 909 [Terms] [Paper]