- development of an egg without fertilization.
Origin of parthenogenesis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for parthenogenetically
The Coccidae can, and mainly do, breed asexually (parthenogenetically).
- a type of reproduction, occurring in some insects and flowers, in which the unfertilized ovum develops directly into a new individual
- human conception without fertilization by a male; virgin birth
C19: from Greek parthenos virgin + genesis birth
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
Word Origin and History for parthenogenetically
"reproduction without fertilization," 1849, from Greek parthenos "virgin," of unknown origin, + genesis (see genesis). Related: Parthenogenetic.
Online Etymology Dictionary, © 2010 Douglas Harper
- A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain other arthropods.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Reproduction in which an egg develops into a new individual without being fertilized. Aphids and certain other insects can reproduce by parthenogenesis. Parthenogenesis does not necessarily produce clones of the parent. Among hymenopterans such as honeybees and ants, the haploid males develop from unfertilized eggs laid by the queen, who is diploid. Parthenogenesis is a form of apomixis.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.