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1. Occupying the same or overlapping geographic areas. Used of organisms, especially populations of the same or closely related species.
2. Occurring among populations having such a distribution: sympatric speciation.

[syn- + Greek patrā, fatherland (from patēr, patr-, father; see pəter- in Indo-European roots) + -ic.]

sym·pat′ri·cal·ly adv.
sym′pat·ry (sĭm′păt′rē, -pə-trē) n.


(Biology) (of biological speciation or species) taking place or existing in the same or overlapping geographical areas. Compare allopatric
[C20: from syn- + -patric, from Greek patra native land, from patēr father]
symˈpatrically adv


(sɪmˈpæ trɪk, -ˈpeɪ-)

adj. Biol., Ecol.
originating in or occupying the same geographical area.
[1900–05; sym- + Greek pátr(ā) fatherland (derivative of patḗr father) + -ic]
sym′pa•try (-pə tri) n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.sympatric - (of biological species or speciation) occurring in the same or overlapping geographical areas
biological science, biology - the science that studies living organisms
allopatric - (of biological species or speciation) occurring in areas isolated geographically from one another
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Test plant species used in this study 1) represented a range of fern genera, 2) occur sympatricly with the exotic weed (target), or 3) are of particular concern for horticultural or conservation reasons.