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[kroh-muh-tid] /ˈkroʊ mə tɪd/
noun, Genetics.
one of two identical chromosomal strands into which a chromosome splits longitudinally preparatory to cell division.
Origin of chromatid
First recorded in 1895-1900; chromat- + -id3 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for chromatid


either of the two strands into which a chromosome divides during mitosis. They separate to form daughter chromosomes at anaphase
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
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chromatid in Medicine

chromatid chro·ma·tid (krō'mə-tĭd)
Either of the two daughter strands of a duplicated chromosome that are joined by a single centromere and separate during cell division to become individual chromosomes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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chromatid in Science
Either of the two strands formed when a chromosome duplicates itself as part of the early stages of cell division. The chromatids are joined together by a single centromere and later separate to become individual chromosomes. See more at meiosis, mitosis.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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