Also found in: Medical, Encyclopedia, Wikipedia.
Relating to or having large chromosomes formed by repeated DNA replication and consisting of many chromatids side by side.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Genetics) denoting a type of giant-size chromosome consisting of many replicated genes in parallel, found esp in Drosophila larvae
[C20: from poly- + Greek taenia band]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014