[ roh-zan-l-in, -ahyn ]
/ roʊˈzæn l ɪn, -ˌaɪn /

noun Chemistry.

a red dye, C20H20N3Cl, derived from aniline and orthotoluidine, a constituent of fuchsin.
the base, C20H21N3O, which, with hydrochloric acid, forms this dye.

Origin of rosaniline

First recorded in 1860–65; rose1 + aniline Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rosaniline

British Dictionary definitions for rosaniline



/ (rəʊˈzænɪˌliːn, -lɪn) /


a reddish-brown crystalline insoluble derivative of aniline used, in the form of its soluble hydrochloride, as a red dyeSee also fuchsin

Word Origin for rosaniline

C19: from rose 1 + aniline
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 rosaniline



A brownish-red crystalline organic compound derived from aniline and used in the manufacture of dyes and in Schiff's reagent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.