from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Originating externally.
  • adjective Originating or produced from outside a cell, tissue, or organism.

from The Century Dictionary.

  • 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 the GNU version of the Collaborative International Dictionary of English.

  • adjective (Bot.) derived from or originating outside; pertaining to, or having the character of, an exogen; -- the opposite of endogenous.
  • adjective (Bot.) 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.
  • adjective (Anat.) Growing from previously ossified parts; -- opposed to autogenous.
  • adjective (Med.) caused by factors from outside the body, rather than from an abnormality of internal functions; -- of illness.
  • adjective (Biol., Biochem.) not synthesized within the organism; absorbed or assimilated from outside the organism.
  • adjective (Med.) an aneurism which is produced by causes acting from without, as from injury.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

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

  • adjective derived or originating externally


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

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


    Sorry, no example sentences found.


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