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

noun Genetics.

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

Origin of euchromatin

First recorded in 1930–35; eu- + chromatin
Related formseu·chro·mat·ic [yoo-kruh-mat-ik] /ˌyu krəˈmæt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for euchromatin


/ (juːˈkrəʊmətɪn) /


the part of a chromosome that constitutes the major genes and does not stain strongly with basic dyes when the cell is not dividingCompare heterochromatin
Derived Formseuchromatic (ˌjuːkrəʊˈmætɪk), adjective
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

Medicine definitions for euchromatin


[ yōō-krōmə-tĭn ]


Chromosomal material that consists of uncoiled dispersed threads during interphase, is genetically active, and stains lightly with basic dyes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.