[foo k-sin]


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.

Nearby words

  1. fubsy,
  2. fuchs,
  3. fuchs epithelial dystrophy,
  4. fuchs, sir vivian ernest,
  5. fuchsia,
  6. fuchsinophil,
  7. fuchsite,
  8. fuchu,
  9. fucivorous,
  10. fuck

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. 2019

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British Dictionary definitions for fuchsin


fuchsine (ˈfuːksiːn, -sɪn)


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

Word Origin for fuchsin

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

Medicine definitions for fuchsin




Any of various red to purple-red rosanilin dyes used as bacterial and histological stains.

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