Main Entry: en·dog·e·nous

Pronunciation: \en-ˈdä-jə-nəs\

Function: adjective

Date: 1830

1 : growing or produced by growth from deep tissue <endogenous plant roots>
2 a : caused by factors inside the organism or system <suffered from endogenous depression> <endogenous business cycles> b : produced or synthesized within the organism or system <an endogenous hormone>

— en·dog·e·nous·ly adverb