from The Century Dictionary.

  • noun An instrument for performing multiplication and division.

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

  • noun A calculating machine.

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

  • noun dated A calculating machine.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Ancient Greek



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  • 1820, France. It sounds like a device from a Philip Pullman novel, but it was the first commercially successful mechanical calculator. Thomas de Colmar used the Leibniz Wheel to produce a machine that could add, subtract, multiply and divide. It was in popular use for one hundred years. See Calculating Devices.

    January 27, 2008