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parthenogenesis
7 dictionary results for: parthenogenesis
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
par·the·no·gen·e·sis 
[par-thuh-noh-jen-uh-sis] Pronunciation Key
—Related forms
[par-thuh-noh-jen-uh-sis] Pronunciation Key –noun Biology.
| development of an egg without fertilization. |
—Related forms
par·the·no·ge·net·i·cal·ly, adverb
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| par·the·no·gen·e·sis
(pär'thə-nō-jěn'ĭ-sĭs) Pronunciation Key
n. A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain other arthropods. [New Latin : Greek parthenos, virgin + genesis.] par'the·no·ge·net'ic (-jə-nět'ĭk) adj., par'the·no·ge·net'i·cal·ly adv. |
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary - Cite This Source - Share This
parthenogenesis
parthenogenesis
"reproduction without fertilization," 1849, from Gk. parthenos "virgin" + genesis (q.v.).
Online Etymology Dictionary, © 2001 Douglas Harper
WordNet - Cite This Source - Share This
| parthenogenesis | |
noun | |
| 1. | human conception without fertilization by a man |
| 2. | process in which an unfertilized egg develops into a new individual; common among insects and some other arthropods |
WordNet® 3.0, © 2006 by Princeton University.
The American Heritage Science Dictionary - Cite This Source - Share This
| parthenogenesis
(pär'thə-nō-jěn'ĭ-sĭs) Pronunciation Key
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.
parthenogenetic adjective (pär'thə-nō-jə-nět'ĭk)
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The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
American Heritage Stedman's Medical Dictionary - Cite This Source - Share This
par'the·no·ge·net'ic (-jə-nět'ĭk) adj.
parthenogenesis par·the·no·gen·e·sis (pär'thə-nō-jěn'ĭ-sĭs)
n.
A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain other arthropods.
par'the·no·ge·net'ic (-jə-nět'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Webster's Revised Unabridged Dictionary - Cite This Source - Share This
Parthenogenesis
Par`the*no*gen"e*sis\, n. [Gr. parqe`nos a virgin + E. genesis.]1. (Biol.) The production of new individuals from virgin females by means of ova which have the power of developing without the intervention of the male element; the production, without fertilization, of cells capable of germination. It is one of the phenomena of alternate generation. Cf. Heterogamy, and Metagenesis. 2. (Bot.) The production of seed without fertilization, believed to occur through the nonsexual formation of an embryo extraneous to the embrionic vesicle.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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