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fuchsin

[foo k-sin]
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noun
  1. a greenish, water-soluble, solid, coal-tar derivative, obtained by the oxidation of a mixture of aniline and the toluidines, that forms deep-red solutions: used chiefly as a dye.
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Also fuch·sine [foo k-sin, -seen] /ˈfʊk sɪn, -sin/.

Origin of fuchsin

First recorded in 1860–65; fuchs(ia) + -in2
Also called basic fuchsin, basic magenta, magenta.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for fuchsin

fuchsin

fuchsine (ˈfuːksiːn, -sɪn)

noun
  1. a greenish crystalline substance, the quaternary chloride of rosaniline, forming a red solution in water: used as a textile dye and a biological stain. Formula: C 20 H 19 N 3 HClAlso called: magenta
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Word Origin

C19: from fuchs (ia) + -in; from its similarity in colour to the flower
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

fuchsin in Medicine

fuchsin

(fyōōksĭn)
n.
  1. Any of various red to purple-red rosanilin dyes used as bacterial and histological stains.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.