the readily stainable substance of a cell nucleus, consisting of DNA, RNA, and various proteins, that forms chromosomes during cell division.
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- chro·ma·tin·ic, adjective
- chro·ma·toid, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use chromatin in a sentence
So it’s not only that genes are being turned on and off, it’s also that this changing of the open or closed chromatin is helping regulate the expression of these important genes for regeneration.Hydras can regrow their heads. Scientists want to know how they do it. | Kate Baggaley | December 8, 2021 | Popular-Science
That’s when Marco realized that the architectural changes to the chromatin were preparing the cells to reinforce the memories when they were recalled.Brain Cell DNA Refolds Itself to Aid Memory Recall | Elena Renken | November 2, 2020 | Quanta Magazine
There’s much more to learn about these changes in chromatin architecture.Brain Cell DNA Refolds Itself to Aid Memory Recall | Elena Renken | November 2, 2020 | Quanta Magazine
Malarial parasites stain characteristically: the cytoplasm, sky-blue; the chromatin, reddish-purple.A Manual of Clinical Diagnosis | James Campbell Todd
Typical "segmenters" present a ring of rounded segments or spores, each with a small, dot-like chromatin mass.A Manual of Clinical Diagnosis | James Campbell Todd
Half the chromatin material passes into each of the two cells formed.Taboo and Genetics | Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
Thus sex is inherited, like other characters, by the action of the chromatin material of the cell nucleus.Taboo and Genetics | Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
When the cell is resting, the chromatin is dispersed through the nucleus in a mass of broken lines, forming a kind of network.Parallel Paths | Thomas William Rolleston
British Dictionary definitions for chromatin
- chromatinic, adjective
- chromatoid, 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
Scientific definitions for chromatin
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.