ex·og·e·nous

[ek-soj-uh-nuhs]
adjective
1.
originating from outside; derived externally.
2.
Botany.
a.
(of plants, as the dicotyledons) having stems that grow by the addition of an annual layer of wood to the outside beneath the bark.
b.
pertaining to plants having such stems.
c.
belonging to the exogens.
3.
Pathology. (of a disease) externally caused rather than resulting from conditions within the organism.
4.
Biochemistry. of or noting the metabolic assimilation of proteins or other metabolites, the elimination of nitrogenous catabolites being in direct proportion to the amount of metabolites taken in.
5.
Geology, exogenetic ( def 1 ).
Also, exogenetic (for defs 2–4).


Origin:
1820–30; exo- + -gen + -ous

ex·og·e·nism, noun
ex·og·e·nous·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To exogenous
00:10
Exogenous is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
exogenous (ɛkˈsɒdʒɪnəs) [Click for IPA pronunciation guide]
 
adj
1.  having an external origin
2.  biology
 a.  developing or originating outside an organism or part of an organism
 b.  of or relating to external factors, such as light, that influence an organism
3.  psychiatry (of a mental illness) caused by external factors
 
ex'ogenously
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

exogenous
Mod.L. exogenus, on model of indigenus (see indigenous).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

exogenous ex·og·e·nous (ěk-sŏj'ə-nəs)
adj.

  1. Originating or produced outside of an organism, a tissue, or a cell.

  2. Having a cause external to the body. Used of diseases.


ex·og'e·nous·ly adv.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
exogenous   (ěk-sŏj'ə-nəs)  Pronunciation Key 
Originating or produced from outside an organism, tissue, or cell. Compare endogenous.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Evolution is a gradual process sometimes punctuated by exogenous catastrophes.
We know that exogenous chemicals mimic neurotransmitters and modulators.
Apart from the difficulty of forecasting the impact of exogenous events,
  investors may have another reason for ignoring them.
Some of it is exogenous to the collective decisions of firms, some of it is
  endogenous.
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