pachytene

[ pak-i-teen ]
/ ˈpæk ɪ tin /

noun Cell Biology.

the third stage of prophase in meiosis, during which each chromosome pair separates into sister chromatids with some breakage and crossing over of genes.

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Also pach·y·ne·ma [pak-uh-nee-muh]. /ˌpæk əˈni mə/.

Origin of pachytene

<French pachytène (1900), equivalent to Greek pachý(s) thick + -tène-tene

Words nearby pachytene

pachypleuritis, pachysalpingitis, pachysalpingo-ovaritis, pachysandra, pachysomia, pachytene, pachyvaginalitis, pachyvaginitis, Pacif., pacifarin, pacific
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for pachytene

pachytene
/ (ˈpækɪˌtiːn) /

noun

the third stage of the prophase of meiosis during which the chromosomes become shorter and thicker and divide into chromatids

Word Origin for pachytene

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

Medical definitions for pachytene

pachytene
[ păk′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.