An instrument for measuring distance travelled by recording the number of revolutions of a wheel of known circumference; spec. (a) (in Surveying…

A device for recording the number of miles traversed by a wheeled vehicle; a hodometer or cyclometer.

= trechometer, n.

An instrument which records the distance run by a vehicle.

An apparatus attached to the wheel of a vehicle, esp. of a cycle, for registering the distance traversed.

a wheel and counting device towed behind a sledge to measure the distance travelled.

The distance-indicator that is often incorporated in the speed-indicator of a motor vehicle; an odometer. U.S.

An instrument fitted to a motor vehicle or bicycle for measuring and displaying the number of miles travelled; an odometer. Also: a pedometer (rare).