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Originating or produced within the organism or one of its parts. SYN: endogenic. [endo- + G. -gen, production]
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1) growing from or on the inside <\endogenous spores>
2) caused by factors within the body or mind or arising from internal structural or functional causes <\endogenous malnutrition> <\endogenous psychic depression>
3) relating to or produced by metabolic synthesis in the body <\endogenous opioids> <\endogenous amino acids> compare EXOGENOUS
en·dog·e·nous·ly adv
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adj.
arising within or derived from the body. Compare exogenous.
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en·dog·e·nous (en-dojґə-nəs) [endo- + -genous] 1. growing from within. 2. developing or originating within the organism, or arising from causes within the organism. Called also endogenic.Medical dictionary. 2011.