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euchromatin

American  
[yoo-kroh-muh-tin] / yuˈkroʊ mə tɪn /

noun

Genetics.

  1. the part of a chromosome that condenses maximally during metaphase and contains most of the genetically active material.

euchromatin British  
/ ˌjuːkrəʊˈmætɪk, juːˈkrəʊmətɪn /

noun

  1. the part of a chromosome that constitutes the major genes and does not stain strongly with basic dyes when the cell is not dividing Compare heterochromatin

"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

Other Word Forms

  • euchromatic adjective

Etymology

Origin of euchromatin

First recorded in 1930–35; eu- + chromatin

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.