parthenogenesis
Use Parthenogenesis in a sentence
θə noun Biology.
development of an egg without fertilization.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To parthenogenesis
Collins
World English Dictionary
parthenogenesis (ˌpɑːθɪnəʊˈdʒɛnɪsɪs) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | a type of reproduction, occurring in some insects and flowers, in which the unfertilized ovum develops directly into a new individual |
| 2. | human conception without fertilization by a male; virgin birth |
| [C19: from Greek parthenos virgin + genesis birth] | |
| parthenogenetic | |
| —adj | |
| parthenoge'netically | |
| —adv | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Parthenogenesis
has a plethora of syllables.
So is floccinaucinihilipilification. Does it mean:
| the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language). |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
Etymonline
Word Origin & History
parthenogenesis
"reproduction without fertilization," 1849, from Gk. parthenos "virgin" + genesis.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
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.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
| 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) |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia
parthenogenesis
biological reproduction that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals, particularly rotifers, aphids, ants, wasps, and bees. An egg produced parthenogenetically may be either haploid (i.e., with one set of dissimilar chromosomes) or diploid (i.e., with a paired set of chromosomes).
Learn more about parthenogenesis with a free trial on Britannica.com.
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences from the web
Polyploid animals are often sterile, so they often reproduce by parthenogenesis.
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