heterochromatin

[het-er-uh-kroh-muh-tin]

het·er·o·chro·ma·tin

[het-er-uh-kroh-muh-tin]
noun Genetics.
the dense, highly stainable part of a chromosome.
Compare euchromatin.


Origin:
1930–35; hetero- + chromatin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Heterochromatin has a plethora of syllables.
So is sesquipedalianism. Does it mean:
given to using long words.
an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language.
Collins
World English Dictionary
heterochromatin (ˌhɛtərəʊˈkrəʊmətɪn)
 
n
Compare euchromatin the condensed part of a chromosome that stains strongly with basic dyes in nondividing cells and has little genetic activity

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

heterochromatin het·er·o·chro·ma·tin (hět'ə-rō-krō'mə-tĭn)
n.
The part of the chromonema that remains tightly coiled and condensed during interphase and thus stains readily.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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