- Any of several basic dyes, such as gentian violet, that are derivatives of pararosaniline and are used as histological and bacteriological stains.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for methyl violet
Dissolve the methyl-violet in the water and add the glycerine.
Methyl-violet, while a less delicate test than tropolin, is better adapted for distinguishing hydrochloric from lactic acid.
Aqueous solution of methyl-violet (an aniline dye) in the strength of 0.025 per cent.
When black hektograph ink is desired, instead of the methyl-violet use double the amount of negrosine.