from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One of the red dye products extracted from madder root, probably identical with ruberythrinic acid.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the red dye products extracted from madder root, and probably identical with ruberythrinic acid.
from The Century Dictionary and Cyclopedia
- n. A resinous coloring matter (C7H6O2), isomeric with benzoic acid, existing in madder, and formed from rubian under the influence of acids or of a soluble ferment found in madder.
Sorry, no etymologies found.