/ Dictionary / Index E endogenous: Meaning and Definition of Find definitions for: en•dog•e•nous Pronunciation: (en-doj'u-nus), [key] — adj. proceeding from within; derived internally. growing or developing from within; originating within. (of a disease) resulting from conditions within the organism rather than externally caused. pertaining to the metabolism of nitrogenous elements of cells and tissues. endogenetic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: endogenous (Thesaurus) endogenetic endogenous depression Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language