Definition of exogenous
1
: produced by growth from superficial tissue
- exogenous roots produced by leaves
2 a
: caused by factors (such as food or a traumatic factor) or an agent (such as a disease-producing organism) from outside the organism or system
- exogenous obesity
- exogenous psychic depression
- exogenous market fluctuations
b
: introduced from or produced outside the organism or system;
specifically
: not synthesized within the organism or system
—
