allopatricPronunciation: /ˌaləˈpatrɪk/Definition of allopatric adjective Biology (of animals or plants, especially of related species or populations) occurring in separate non-overlapping geographical areas. Compare with sympatric. (of speciation) taking place as a result of allopatric separation. Derivatives allopatry noun Origin: 1940s: from allo- 'other' + Greek patra 'fatherland' + -icallopatric in other Oxford dictionaries Definition of allopatric in the US English dictionary