Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A form of crystal resembling quartz, having two six-sided pyramids, base to base.

from the GNU version of the Collaborative International Dictionary of English

  • n. A form of crystal common with quartz, consisting of two six-sided pyramids, base to base.

from The Century Dictionary and Cyclopedia

  • In crystallography, a double six-sided pyramid, represented by uniting two six-sided single pyramids base to base.

Etymologies

quartz +‎ -oid (Wiktionary)

Examples

Sorry, no example sentences found.

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