from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Biology Derived or developed from outside the body; originating externally.
  • adj. Botany Characterized by the addition of layers of woody tissue.
  • adj. Medicine Having a cause external to the body. Used of diseases.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. produced or originating outside of an organism
  • adj. of a disease: having an external cause
  • adj. of information: received from outside a group
  • adj. descriptive of a group created by public as opposed to private information

from the GNU version of the Collaborative International Dictionary of English

  • adj. derived from or originating outside; pertaining to, or having the character of, an exogen; -- the opposite of endogenous.
  • adj. Growing by addition to the exterior; growing by addition of a new external layer of cells on the surface just beneath the bark; -- of plants.
  • adj. Growing from previously ossified parts; -- opposed to autogenous.
  • adj. caused by factors from outside the body, rather than from an abnormality of internal functions; -- of illness.
  • adj. not synthesized within the organism; absorbed or assimilated from outside the organism.

from The Century Dictionary and Cyclopedia

  • Growing by additions on the outside; specifically, in botany, belonging to or characteristic of the class of exogens.
  • Produced on the outside, as the spores of hyphomycetous and many other fungi; growing out from some part: specifically applied in anatomy to those processes of a vertebra which have no independent ossific centers of their own, but are mere outgrowths.
  • In geology, applied by Von Humboldt to extrusive, volcanic rocks, in contrast to endogenous rocks. See endogenous, 3.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. derived or originating externally


from The American Heritage® Dictionary of the English Language, 4th Edition

French exogène : Greek exō-, exo- + French -gène, -gen.


  • PERPER: Well, definitely, she had a good what we call exogenous, outside reason for depression.

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  • If the marketplace has withdrawn buyers, this is called exogenous liquidity risk a characteristic of the market which is a collection of buyers; a typical indicator here is an abnormally wide bid-ask spread.

  • For the record, my greatest concern with desiccated thyroid (or levothyroxine or T3) is when they prescribed in a manner that results in long-term exogenous hyperthyroidism. Thyroid Disease

  • Well I do not - when you used the word exogenous you threw me there. Home Page

  • He could avoid stacking the deck by basing predictions of future variables on their own past values, on the past values of other variables, and on what economists call "exogenous shocks."

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  • It is also important to realize that markets go up and down and experience what economists refer to as exogenous shocks.

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  • Those trees called exogenous grow by means of successive layers on the outside.

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  • Wealth, social standing, reputation for power, knowledge of alternatives, and attention are not easily described as exogenous to the political process and political institutions.

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  • _ [2] Toxins are divided into two groups; namely exogenous, those formed in the alimentary canal from fermentation and decomposition following imperfect or faulty digestion.

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  • In botany you learn of two kinds of plants -- those which grow by external accretions, as bulbs, which, are called exogenous? and plants which grow within outward, which are called endogenous A great philosopher has said that "man is that noble endogenous plant which grows, like the palm, from within outward."

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