The Collaborative International Dictionary of English v.0.48:
milometer \milometer\ n. a meter that shows mileage traversed. Syn: odometer, hodometer, mileometer. [WordNet 1.5]WordNet (r) 3.0 (2006):
milometer n 1: a meter that shows mileage traversed [syn: odometer, hodometer, mileometer, milometer]