Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An opaque or milk-white chalcedony, a variety of quartz.
  • n. A similar variety of opal.

from the GNU version of the Collaborative International Dictionary of English

  • n. An opaque or milk-white chalcedony, a variety of quartz; also, a similar variety of opal.

from The Century Dictionary and Cyclopedia

  • n. A variety of opal, often called pearl-opal, usually milk-white, sometimes grayish- or yellowish-white, in color, and opaque or slightly translucent at the edges.

Etymologies

From French cacholong, said to be from Cach, the name of a river in Bucharia + cholon, a Calmuck word for stone; or from a Calmuck word meaning "beautiful stone". (Wiktionary)

Examples

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