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[pol-ee-em-bree-uh-nee, -oh-nee, -em-brahy-uh-nee] /ˌpɒl iˈɛm bri ə ni, -ˌoʊ ni, -ɛmˈbraɪ ə ni/
noun, Embryology.
the production of more than one embryo from one egg.
Origin of polyembryony
1840-50; poly- + Greek émbryon embryo + -y3 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for polyembryony


the production of more than one embryo from a single fertilized egg cell: occurs in certain plants and parasitic hymenopterous insects
Derived Forms
polyembryonic (ˌpɒlɪˌɛmbrɪˈɒnɪk) adjective
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
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polyembryony in Medicine

polyembryony pol·y·em·bry·o·ny (pŏl'ē-ěm'brē-ə-nē, -ěm-brī'-)
Development of more than one embryo from a single egg or ovule.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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polyembryony in Science
  (pŏl'ē-ěm'brē-ə-nē, -ěm-brī'-)   
Development from a single fertilized egg cell or, in plants, from a single ovule. In human beings, identical twins are the result of polyembryony. In gymnosperm plants, polyembryony involves the fertilization of more than one egg, though usually only one embryo survives in the ovule.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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