An example of something endogenous is a tumor that is caused by conditions inside the body not by externally-introduced conditions such as smoking.
- developing from within; originating internally
- Biol. growing or developing from or on the inside
- of the anabolism of cells
Origin of endogenousendogen + -ous
- Originating internally.
- Originating or produced within an organism, tissue, or cell: endogenous hormones.
(comparative more endogenous, superlative most endogenous)
endo- + -genous