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

  • n. Tourmaline, especially black tourmaline.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The most common variety of tourmaline.

from the GNU version of the Collaborative International Dictionary of English

  • n. Black tourmaline.

from The Century Dictionary and Cyclopedia

  • n. A term used by early mineralogists to embrace a large group of crystallized minerals: later limited to common black tourmalin.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. black tourmaline


German Schörl.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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