from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A catopter, or reflecting glass.

from the GNU version of the Collaborative International Dictionary of English

  • n. See catopter.

from The Century Dictionary and Cyclopedia

  • n. Same as catopter.


Sorry, no etymologies found.


  • He supposes the catoptron to have been the same with the astrolabe.

    Arabian nights. English

  • "Moschopalus," he says, "an ancient grammarian, mentions four instruments with which the astronomers of antiquity were accustomed to observe the stars -- the catoptron, the dioptron, the eisoptron and the enoptron."

    Arabian nights. English


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  • A word, when written in uppercase, appears the same when reflected in a mirror: e.g., TOOT.

    May 22, 2008