odometry

noun

1. an instrument for measuring distance traveled, as by an automobile.

noun

1. US and Canadian a device that records the number of miles that a bicycle or motor vehicle has travelledAlso called: mileometer

n.1791, from French odomètre (1724), from Greek hodos “way” (see cede) + -meter. First recorded in writings of Thomas Jefferson.

1. An instrument for indicating the distance traveled by a vehicle, typically by measuring the number of rotations of a wheel or fan whose rate of rotation depends on the speed of the vehicle. Compare speedometer.