from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A brownish-red crystalline organic compound, C20H21N3O, derived from aniline and used in the manufacture of dyes and in Schiff's reagent.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An organic base, C20H19N3, used to make the dye fuchsine
- n. The deep red or magenta colour of fuchsine (rosaniline hydrochloride).
from the GNU version of the Collaborative International Dictionary of English
- n. A complex nitrogenous base, C20H21N3O, obtained by oxidizing a mixture of aniline and toluidine, as a colorless crystalline substance which forms red salts. These salts are essential components of many of the socalled aniline dyes, as fuchsine, aniline red, etc. By extension, any one of the series of substances derived from, or related to, rosaniline proper.
from The Century Dictionary and Cyclopedia
- n. An organic base (C20H21N3O), a derivative of aniline, crystallizing in white needles, capable of uniting with acids to form salts, which are the well-known rosaniline coloring matters of commerce; also, the color thus produced.
ros(e)1 + aniline.(American Heritage® Dictionary of the English Language, Fourth Edition)
Rose + aniline (so called by Hofmann in 1862) (Wiktionary)