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reduction division

noun, Biology.
the first division of meiosis in which the number of chromosomes is reduced to half the original number.
Origin of reduction division
First recorded in 1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for reduction division
Historical Examples
  • The first stage in the division of the nucleus in the gonotokonts has therefore been termed the reduction division.

    Darwin and Modern Science A.C. Seward and Others
  • The question remains: How can external conditions bring it about that the reduction division is omitted?

British Dictionary definitions for reduction division

reduction division

another name for meiosis
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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reduction division in Medicine

reduction division n.
See reduction.

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