from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An apocarotenoid that is the active ingredient of annatto.
from The Century Dictionary and Cyclopedia
- n. The orange- coloring principle (C16H26O2) of arnotto, a vermilion-red powder, insoluble in water or ether, but soluble in alcohol and benzol.
- n. A variety of arnotto, having from six to ten times the coloring power of common arnotto, from quicker extraction.
Sorry, no etymologies found.