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 the Appendix of Indo-European roots) + -IC.]
sympat·ry (sĭmpăt′rē, -pə-trē) n.
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