parthenogenesis

[ par-thuh-noh-jen-uh-sis ]
/ ˌpær θə noʊˈdʒɛn ə sɪs /

noun Biology.

development of an egg without fertilization.

Origin of parthenogenesis

First recorded in 1840–50; partheno- + genesis

Related forms

par·the·no·ge·net·ic [pahr-thuh-noh-juh-net-ik] /ˌpɑr θə noʊ dʒəˈnɛt ɪk/, adjectivepar·the·no·ge·net·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for parthenogenetically

British Dictionary definitions for parthenogenetically

parthenogenesis

/ (ˌpɑːθɪnəʊˈdʒɛnɪsɪs) /

noun

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

Derived Forms

parthenogenetic (ˌpɑːθɪˌnəʊdʒɪˈnɛtɪk), adjectiveparthenogenetically, adverb

Word Origin for parthenogenesis

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

Medicine definitions for parthenogenetically

parthenogenesis

[ pär′thə-nō-jĕnĭ-sĭs ]

n.

A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain other arthropods.

Related forms

par′the•no•ge•netic (-jə-nĕtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for parthenogenetically

parthenogenesis

[ pär′thə-nō-jĕnĭ-sĭs ]

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.

Related forms

parthenogenetic adjective (pär′thə-nō-jə-nĕtĭk)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.