'Natural product' definitions:
Definition of 'Natural product'
From: GCIDE
- Natural product \Nat"u*ral prod"uct\, n. (Chem., Biochem.) A chemical substance produced by a living organism; -- a term used commonly in reference to chemical substances found in nature that have distinctive pharmacological effects. Such a substance is considered a natural product even if it can be prepared by total synthesis. [PJC]