Definition of "metabolite" [me•tab•o•lite]

• A substance produced by metabolism. (noun)
• A substance necessary for or taking part in a particular metabolic process. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "First they took cerebral spinal fluid from 132 juvenile rhesus monkeys and analyzed it for a serotonin metabolite, called 5-HIAA, that’s considered a reliable indicator of how much serotonin the nervous system is processing."
• "For example, phenoxybenzamine (Dibenzyline®), a drug given to relieve hypertension, is biotransformed into a metabolite, which is the active agent."
• "This agent was not described as metabolite in report, but it should be noted that diazepam breaks down into oxazepam."