Definition of "metabolite"

Cannabis and some of its metabolites, for example, persist in the fat stores of the body for several weeks after a single dose.

2001, Leslie Iversen, Drugs: A Very Short Introduction, Oxford, page 33

In addition to looking at gene expression, Bozek and her colleagues analyzed levels of metabolites, a diverse group of small molecules that includes sugars, nucleic acids and neurotransmitters. Many metabolites are either necessary for metabolism or produced by it.

2015, Ferris Jabr, How Humans Ended Up With Freakishly Huge Brains Wired‎