metabolite

n. substance created though the metabolic process (Biology, Physiology)

Metabolomics is the "systematic study of the unique chemical fingerprints that specific cellular processes leave behind" - specifically, the study of their small-molecule metabolite profiles. The metabolome represents the collection of all metabolites in a biological organism, which are the end products of its gene expression. Thus, while mRNA gene expression data and proteomic analyses do not tell the whole story of what might be happening in a cell, metabolic profiling can give an instantaneous snapshot of the physiology of that cell. One of the challenges of systems biology is to integrate proteomic, transcriptomic, and metabolomic information to give a more complete picture of living organisms.
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Metabolite /me·tab·o·lite/ any substance produced by metabolism or by a metabolic process. me·tab·o·lite n. 1. A substance produced by metabolism. 2. [more]Metabolite - Community and Resources

Noun
1. any substance involved in metabolism (either as a product of metabolism or as necessary for metabolism)
(hypernym) substance, matter

n. metabolite, substance created though the metabolic process (Biology, Physiology)