[ en-doj-uh-nuhs ]
/ ɛnˈdɒdʒ ə nəs /
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proceeding from within; derived internally.
Biology. growing or developing from within; originating within.
Pathology. (of a disease) resulting from conditions within the organism rather than externally caused.
Biochemistry. pertaining to the metabolism of nitrogenous elements of cells and tissues.
Geology. endogenetic.



In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of endogenous

First recorded in 1825–35; endo- + -genous
en·do·ge·nic·i·ty [en-doh-juh-nis-i-tee], /ˌɛn doʊ dʒəˈnɪs ɪ ti/, nounen·dog·e·nous·ly, adverb
endogenous , indigenous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • He held, however, that the nuclei multiplied endogenously and not by division.

    Form and Function|E. S. (Edward Stuart) Russell
  • In its protoplasm a number of germs first appear endogenously, but the nucleus of the germogen does not assist in their formation.

  • The quality q, so far, is an entirely subjective fact which the feeling carries so to speak endogenously, or in its pocket.

    The Meaning of Truth|William James

British Dictionary definitions for endogenous

/ (ɛnˈdɒdʒɪnəs) /


biology developing or originating within an organism or part of an organismendogenous rhythms
having no apparent external causeendogenous depression
endogenously, adverbendogeny, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for endogenous

[ ĕn-dŏjə-nəs ]


Originating or produced within an organism, tissue, or cell.
Caused by factors within the body. Used of a disease.
en•doge•nous•ly adv.en•doge•ny n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for endogenous

[ ĕn-dŏjə-nəs ]

Originating or produced within an organism, tissue, or cell. Compare exogenous.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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