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deme

[deem]
noun
  1. one of the administrative divisions of ancient Attica and of modern Greece.
  2. Biology. a local population of organisms of the same kind, especially one in which the genetic mix is similar throughout the group.
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Origin of deme

First recorded in 1620–30, deme is from the Greek word dêmos a district, the people, commons
Related formsdem·ic [dem-ik, dee-mik] /ˈdɛm ɪk, ˈdi mɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for demic

deme

noun
    1. (in preclassical Greece) the territory inhabited by a tribe
    2. (in ancient Attica) a geographical unit of local government
  1. biology a group of individuals within a species that possess particular characteristics of cytology, genetics, etc
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Word Origin

C19: from Greek dēmos district in local government, the populace
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

demic in Science

deme

[dēm]
  1. A small, locally interbreeding group of organisms within a larger population. Demes are isolated reproductively from other members of their species, although the isolation may only be partial and is not necessarily permanent. Because they share a somewhat restricted gene pool, members of a deme generally differ morphologically to some degree from members of other demes. See also population.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.