The word "Odometrous" is spelled as /ˌəʊdəˈmiːtrəs/ in IPA phonetic transcription. It comes from the Greek word "odon" meaning "tooth" and "metron" meaning "measure". The word refers to a device used to measure the distance traveled by a wheeled vehicle. It is often misspelled as "odometerous" because of its association with the vehicle odometer. However, the correct spelling uses the Greek root "odo" instead of "odo-" as in "odometer."