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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.
sym′pat·ry (sĭm′păt′rē, -pə-trē) n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
sympatric(of a population of organisms) occurring together in the same geographical area. The term is used to describe the geographical distribution of organisms which either coincide or overlap. Compare ALLOPATRIC.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005