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au·toch·tho·nous(ô-tŏk′thə-nəs) also au·toch·tho·nal (-thə-nəl) or au·toch·thon·ic (ô′tŏk-thŏn′ĭk)
1. Originating or formed in the place where found; indigenous: autochthonous rocks; an autochthonous people; autochthonous folk tales. See Synonyms at native.
2. Ecology Native to or produced within a system: an autochthonous species; algae that provide an autochthonous source of nutrients in a lake.
au·toch′thon·ism, au·toch′tho·ny n.
1. (Geological Science) (of rocks, deposits, etc) found where they and their constituents were formed. Compare allochthonous
2. (Anthropology & Ethnology) inhabiting a place or region from earliest known times; aboriginal
3. (Physiology) physiol (of some functions, such as heartbeat) originating within an organ rather than from external stimulation
auˈtochthonism, auˈtochthony n
au•toch•tho•nous(ɔˈtɒk θə nəs)
1. aboriginal; indigenous.
2. native to or formed in the place where found.
3. Pathol. located in a part of the body in which it originated, as a cancer or infection.
4. Psychol. of or pertaining to ideas that originate independently of normal modes of thought or influences, as an obsession or schizophrenic construct.
au•toch′tho•nism, au•toch′tho•ny, n.
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|Adj.||1.||autochthonous - of rocks, deposits, etc.; found where they and their constituents were formed|
allochthonous - of rocks, deposits, etc.; found in a place other than where they and their constituents were formed
|2.||autochthonous - originating where it is found; "the autochthonal fauna of Australia includes the kangaroo"; "autochthonous rocks and people and folktales"; "endemic folkways"; "the Ainu are indigenous to the northernmost islands of Japan"|
native - characteristic of or existing by virtue of geographic origin; "the native North American sugar maple"; "many native artists studied abroad"