comptometer definition

  • noun:
    • A mechanical or electromechanical calculator; an adding machine without a crank, driven instead by keypress.
    • A calculating machine; an arithmometer.
    • A key-actuated machine for doing addition, subtraction, multiplication, and division. It has nine keys plus one lever per line of figures; the tips actuate the levers, and also the amount's figure-wheels which suggest results.
    • A mechanical or electromechanical calculator; an adding device without a crank, driven instead by keypress.
    • A calculating machine; an arithmometer.
    • A key-actuated machine for doing inclusion, subtraction, multiplication, and unit. It's nine keys and another lever for each line of figures; the secrets actuate the levers, together with degree's figure-wheels which indicate outcomes.

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