endogenous
adjective
- growing or produced by growth from deep tissue
- caused by factors inside the organism or system
- produced or synthesized within the organism or system
Wiktionary
Pronunciation: /ɪnˈdɒd͡ʒ.ə.nəs/ / /ɪnˈdɑ.d͡ʒə.nəs/
adj
Etymology: From endogen + -ous or endo- + -genous. Piecewise doublet of indigenous.
- Produced, originating or growing from within.
- Of a natural process: caused by factors within the body.