adjective, Biology, Ecology.
originating in or occupying the same geographical area.
(of biological speciation or species) taking place or existing in the same or overlapping geographical areas Compare allopatric
Occupying the same or overlapping geographic areas without interbreeding. Although they share the same geographic range, sympatric populations of related organisms become isolated from each other reproductively. This can happen by the development of subpopulations that become dependent on distinct food sources or that evolve distinct seasonal mating behavior. Flowering plants frequently become reproductively isolated through the development of polyploid hybrids (hybrids with three or more sets of chromosomes) that cannot backcross with either parent. ◇ The development of new species as a result of the reproductive isolation of populations that share the same geographic range is called sympatric speciation. Compare allopatric.
symphalangism sym·phal·an·gism (sĭm-fāl’ən-jĭz’əm) n. See syndactyly. Ankylosis of the finger or toe joints.
noun 1. an insect or other organism that lives in the nests of social insects, esp ants and termites, and is fed and reared by the inmates Compare synoekete
noun 1. a small symphony orchestra that usually specializes in playing short, familiar classical works or salon music.
noun 1. any of various medieval musical instruments, as the hurdy-gurdy.