hematoxylin

[hee-muh-tok-suh-lin, hem-uh-]

he·ma·tox·y·lin

[hee-muh-tok-suh-lin, hem-uh-]
noun
a colorless or pale-yellow, crystalline compound, C16H14O6·3H2O, the coloring material of logwood: used as a mordant dye and as an indicator.

Origin:
1840–50; hemato- + xyl- + -in2

he·ma·tox·yl·ic [hee-muh-tok-sil-ik, hem-uh-] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Hematoxylin has a plethora of syllables.
So is sesquipedalianism. Does it mean:
a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S.
given to using long words.
Collins
World English Dictionary
haematoxylin or (US) hematoxylin (ˌhiːməˈtɒksɪlɪn, ˌhɛm-, ˌhiːməˈtɒksɪlɪn, ˌhɛm-)
 
n
1.  a colourless or yellowish crystalline compound that turns red on exposure to light: obtained from logwood and used in dyes and as a biological stain. Formula: C16H14O6.3H2O
2.  a variant spelling of haematoxylon
 
[C19: from New Latin Haematoxylon genus name of logwood, from haemato- + Greek xulon wood + -in]
 
hematoxylin or (US) hematoxylin
 
n
 
[C19: from New Latin Haematoxylon genus name of logwood, from haemato- + Greek xulon wood + -in]

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

hematoxylin he·ma·tox·y·lin (hē'mə-tŏk'sə-lĭn)
n.
A yellow or red crystalline compound used in histological dyes and as an indicator.

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