EXAMPLES | WORD ORIGIN noun . Cell Biology the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division. Origin of chromatin
First recorded in
-in 2 Related forms chro·ma·tin·ic, adjective chro·ma·toid, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for chromatin Historical Examples of chromatin British Dictionary definitions for chromatin noun cytology the part of the nucleus that consists of DNA and proteins, forms the chromosomes, and stains with basic dyes See also euchromatin, heterochromatin Derived Forms chromatinic, adjective chromatoid, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for chromatin n.
protoplasm in cell nuclei, 1882, from German, coined 1879 by German anatomist Walther Flemming (1843-1905), from Latinized form of Greek
khromat-, the correct combinational form of khroma "color" (see chroma) + chemical suffix -in (2). Related: Chromatid. Cf. chromosome.
Online Etymology Dictionary, © 2010 Douglas Harper
n. A complex of nucleic acids and proteins in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The substance distributed in the nucleus of a cell that condenses to form chromosomes during cell division. It consists mainly of DNA and proteins called histones.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.