Definitions

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.

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