Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A bitter-tasting yellow alkaloid, C20H19NO5, obtained from several plants such as goldenseal and having medical uses as an antipyretic and antibacterial agent.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An alkaloid obtained, as a bitter, yellow substance, from the root of the barberry, gold thread, and other plants.

from the GNU version of the Collaborative International Dictionary of English

  • n. An alkaloid obtained, as a bitter, yellow substance, from the root of the barberry, gold thread, and other plants.

from The Century Dictionary and Cyclopedia

  • n. An alkaloid (C20H17 NO4) widely distributed in the vegetable kingdom, being found in the barberry and a considerable number of plants, or parts of plants, whose extracts combine a yellow color and bitter taste.

Etymologies

New Latin Berberis, barberry genus (from Medieval Latin berberis, barberry) + -ine2.
(American Heritage® Dictionary of the English Language, Fourth Edition)

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