Dictionary
Thesaurus
Reference
Translate
Web
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
–noun Biology.
development of an egg without fertilization.

[Origin: 1840–50; partheno- + genesis]

par·the·no·ge·net·ic       [pahr-thuh-noh-juh-net-ik] Pronunciation Key, adjective
par·the·no·ge·net·i·cal·ly, adverb
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.
Online Etymology Dictionary - Cite This Source - Share This
parthenogenesis 
"reproduction without fertilization," 1849, from Gk. parthenos "virgin" + genesis (q.v.).

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 

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)

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

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.

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.

Share This:Share This: digg.comShare This: ma.gnolia.comShare This: www.stumbleupon.comShare This: del.icio.usShare This: FacebookShare This: favorites.live.comShare This: www.technorati.comShare This: furl.netShare This: myweb2.search.yahoo.comShare This: www.google.com