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English Dictionary

autochthonous  (ɔːˈtɒkθənəs or autochthonic  (ˌɔːtɒkˈθɒnɪk or autochthonal



  1. (of rocks, deposits, etc) found where they and their constituents were formed Compare allochthonous
  2. inhabiting a place or region from earliest known times; aboriginal
  3. (physiology) (of some functions, such as heartbeat) originating within an organ rather than from external stimulation

Derived Forms

auˈtochthonism, auˈtochthony  noun
auˈtochthonously  adverb


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