n. [ Gr. "odo`metron, "odo`metros, an instrument for measuring distance; "odo`s way, path, road + me`tron measure: cf. F. odométre, hodométre. See also odometer.] A device for measuring the length of a path, consisting of a wheel of known circumference attached to a rod held in the hand, and pushed along a surface, which is usually the ground or a floor. The number of times the wheel makes a complete circle multiplied by the circumference is a measure of the length of the path traversed. It may be used to measure distances on curved as well as straight paths. A variant which registers the miles and rods traversed is sometimes used by surveyors. [PJC + 1913 Webster]
n. [ Gr. "odo`metron, "odo`metros, an instrument for measuring distance; "odo`s way + me`tron measure: cf. F. odométre, hodométre. See also hodometer.] An instrument attached to a vehicle or connected, as by a flexible cable, to the wheel of a vehicle, which measures the distance traversed. [1913 Webster]
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