The definition of a nutrient is something that provides nourishment, food or substances necessary for growth.(noun)
Protein is an example of a nutrient.
See nutrient in Webster's New World College Dictionary
Origin: L nutriens, prp. of nutrire, to nourish: see nurse
See nutrient in American Heritage Dictionary 4
Origin: Latin nūtriēns, nūtrient-
Origin: , present participle of nūtrīre, to suckle; see (s)nāu- in Indo-European roots.
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