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[ey-sek-shoo-uh l] /eɪˈsɛk ʃu əl/
  1. having no sex or sexual organs.
  2. independent of sexual processes, especially not involving the union of male and female germ cells.
free from or unaffected by sexuality:
an asexual friendship.
Origin of asexual
1820-30; a-6 + sexual
Related forms
[ey-sek-shoo-al-i-tee] /eɪˌsɛk ʃuˈæl ɪ ti/ (Show IPA),
asexually, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for asexual
Contemporary Examples
Historical Examples
  • The former is therefore an asexual development, while the latter is sexual.

    The Sea Shore William S. Furneaux
  • As with the last division, the reproduction of the melanospores may be asexual or sexual.

    The Sea Shore William S. Furneaux
  • The asexual spores, which are not motile, are formed in some of the surface cells of the thallus.

    The Sea Shore William S. Furneaux
  • There are two kinds of reproduction, the sexual and the asexual.

  • In a large number of lower animals and plants sexual and asexual generation regularly alternate.

    The Wonders of Life Ernst Haeckel
British Dictionary definitions for asexual


/eɪˈsɛksjʊəl; æ-/
having no apparent sex or sex organs
(of reproduction) not involving the fusion of male and female gametes, as in vegetative reproduction, fission, or budding
Derived Forms
asexuality (eɪˌsɛksjʊˈælɪtɪ; ˌæ-) noun
asexually, adverb
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
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Word Origin and History for asexual

1830, as a term in biology, a hybrid from a- (2) "not" + sexual. In general contexts, attested from 1896.

Online Etymology Dictionary, © 2010 Douglas Harper
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asexual in Medicine

asexual a·sex·u·al (ā-sěk'shōō-əl)

  1. Having no evident sex or sex organs; sexless.

  2. Relating to, produced by, or involving reproduction that occurs without the union of male and female gametes, as in binary fission or budding.

  3. Lacking interest in or desire for sex.

a·sex'u·al'i·ty (-āl'ĭ-tē) n.
a·sex'u·al·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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