comptometer

noun

1. A mechanical or electromechanical calculator; an adding machine without a crank, driven instead by keypress.

   Another was able to add up correctly the most complicated lists of figures in less time than a comptometer.

Where it comes from

Genericized trademark of Felt and Tarrant Manufacturing Company, apparently a blend of compute and meter (“measure”).

Adapted from the Wiktionary entry comptometer (CC BY-SA 4.0).

← comprachicocompurgator →

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