Odometer/əʊˈdɑːmɪtər/ Definition 1 of 1Pro Tip 1/3Vehicle Specific Mainly found in vehicles like cars and bikes to track distance traveled. My bike's odometer shows 5,000 kilometers. Pro Tip 2/3Not Time-Related An odometer deals with distance, not the time the vehicle has been used. The odometer reading is high, but the engine is new. Pro Tip 3/3Odometer Tampering Illegally changing the odometer reading is called 'clocking' or 'rolling back'. The used car dealer was fined for rolling back odometers.