Nephelodometer :: Nephelodometer (n.) An instrument for reckoning the distances or velocities of clouds.
Odometer :: Odometer (n.) An instrument attached to the wheel of a vehicle, to measure the distance traversed; also, a wheel used by surveyors, which registers the miles and rods traversed..
Odometrical :: Odometrical (a.) Of or pertaining to the odometer, or to measurements made with it..
Odometrous :: Odometrous (a.) Serving to measure distance on a road.
Odometry :: Odometry (n.) Measurement of distances by the odometer.