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micronucleus

[mahy-kroh-noo-klee-uh s, -nyoo-] /ˌmaɪ kroʊˈnu kli əs, -ˈnyu-/
noun, plural micronuclei
[mahy-kroh-noo-klee-ahy, -nyoo-] /ˌmaɪ kroʊˈnu kliˌaɪ, -ˈnyu-/ (Show IPA).
Biology
1.
the smaller of the two types of nuclei occurring in ciliate protozoans.
Compare macronucleus.
Origin
1890-1895
1890-95; micro- + nucleus
Related forms
micronuclear, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for micronucleus
  • micronucleus formation in fetal and maternal mouse erythroblasts.
British Dictionary definitions for micronucleus

micronucleus

/ˌmaɪkrəʊˈnjuːklɪəs/
noun (pl) -clei (-klɪˌaɪ), -cleuses
1.
the smaller of two nuclei in ciliated protozoans, involved in reproduction Compare macronucleus
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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micronucleus in Medicine

micronucleus mi·cro·nu·cle·us (mī'krō-nōō'klē-əs, -nyōō'-)
n.

  1. A minute nucleus.

  2. The smaller of two nuclei in ciliate protozoans that contains genetic material and functions in reproduction.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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