Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A brittle, dark green to brown or black mineral, ZnAl2O4.

from The Century Dictionary.

  • noun A mineral of the spinel group, crystallizing in the isometric system, commonly in regular octahedrons.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Min.) Zinc spinel; automolite.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun mineralogy A rare mineral ZnAl2O4 in the spinel group.

Etymologies

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

[After Johan Gahn, (1745–1818), Swedish mineralogist.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Named after Swedish chemist Johan Gottlieb Gahn (1745-1818) in 1807.

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Examples

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Comments

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  • Gah!

    June 11, 2024