comptometer

名词 n.
中文释义

英文释义

名词 n.
  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.

词形变化

comptometers plural

词源

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