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pachytene

[pak-i-teen] /ˈpæk ɪ tin/
noun, Cell Biology.
1.
the third stage of prophase in meiosis, during which each chromosome pair separates into sister chromatids with some breakage and crossing over of genes.
Also, pachynema
[pak-uh-nee-muh] /ˌpæk əˈni mə/ (Show IPA)
.
Origin of pachytene
< French pachytène (1900), equivalent to Greek pachý(s) thick + -tène -tene
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for pachytene

pachytene

/ˈpækɪˌtiːn/
noun
1.
the third stage of the prophase of meiosis during which the chromosomes become shorter and thicker and divide into chromatids
Word Origin
from Greek pakhus thick + tainia band
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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pachytene in Medicine

pachytene pach·y·tene (pāk'ĭ-tēn')
n.
The third stage of the prophase of meiosis during which the homologous chromosomes become short and thick and divide into four distinct chromatids.

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