[pol-ee-em-bree-uh-nee, -oh-nee, -em-brahy-uh-nee]

noun Embryology.

the production of more than one embryo from one egg.

Origin of polyembryony

1840–50; poly- + Greek émbryon embryo + -y3
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for polyembryony

Historical Examples of polyembryony

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 Formspolyembryonic (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

polyembryony in Medicine


[pŏl′ē-ĕmbrē-ə-nē, -ĕm-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.

polyembryony in Science


[pŏl′ē-ĕmbrē-ə-nē, -ĕm-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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.