- originating from outside; derived externally.
- (of plants, as the dicotyledons) having stems that grow by the addition of an annual layer of wood to the outside beneath the bark.
- pertaining to plants having such stems.
- 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.
- Geology. exogenetic(def 1).
Also exogenetic (for defs 2–4).
Origin of exogenous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for exogenous
Yes, the record of the 2000s looks better if you treat the bust as some kind of exogenous event caused by overbearing government.
But in that case, you also have to treat the real-estate bubble as an exogenous event.
The exogenous and endogenous hydatids may coexist in the same bearer.Parasites
T. Spencer Cobbold
In botany, the white and softer parts of the wood of exogenous plants, lying between the inner bark and the heartwood.
We have in the botanical world the exogenous and the endogenous tree.
Most of the trees with which we have to do are of the exogenous type.
This is exogenous growth, or outside-growing, as the name denotes.The Elements of Botany
- having an external origin
- developing or originating outside an organism or part of an organism
- of or relating to external factors, such as light, that influence an organism
- psychiatry (of a mental illness) caused by external factors
Word Origin and History for exogenous
Online Etymology Dictionary, © 2010 Douglas Harper
- Originating or produced outside of an organism, tissue, or cell.
- Having a cause external to the body. Used of diseases.
- 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.