exogenous

[ ek-soj-uh-nuh s ]
/ ɛkˈsɒdʒ ə nəs /
|

adjective

originating from outside; derived externally.
Botany.
  1. (of plants, as the dicotyledons) having stems that grow by the addition of an annual layer of wood to the outside beneath the bark.
  2. pertaining to plants having such stems.
  3. belonging to the exogens.
Pathology. (of a disease) externally caused rather than resulting from conditions within the organism.
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.

Nearby words

  1. exogamous,
  2. exogamy,
  3. exogastrula,
  4. exogenetic,
  5. exogenic,
  6. exogenous fiber,
  7. exogenous hyperglyceridemia,
  8. exome,
  9. exomphalos,
  10. exon

Also exogenetic (for defs 2–4).

Origin of exogenous

First recorded in 1820–30; exo- + -gen + -ous

Related formsex·og·e·nism, nounex·og·e·nous·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for exogenously

  • Exogenously higher income"—that is, wealth that comes, poof, out of the blue—"produces unhealthy living.

    Lotto Death Curse|Anneli Rufus|February 19, 2010|DAILY BEAST


British Dictionary definitions for exogenously

exogenous

/ (ɛkˈsɒdʒɪnəs) /

adjective

having an external origin
biology
  1. developing or originating outside an organism or part of an organism
  2. of or relating to external factors, such as light, that influence an organism
psychiatry (of a mental illness) caused by external factors
Derived Formsexogenously, adverb

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

Word Origin and History for exogenously

exogenous

adj.

1830, from Modern Latin exogenus (on model of indigenus); see exo- + -genous.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for exogenously

exogenous

[ ĕk-sŏjə-nəs ]

adj.

Originating or produced outside of an organism, tissue, or cell.
Having a cause external to the body. Used of diseases.
Related formsex•oge•nous•ly adv.


The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for exogenously

exogenous

[ ĕk-sŏjə-nəs ]

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