noun. a policeman who rides a motorcycle (and who checks the speeds of motorists).
noun. ['ˈmoʊtɝˌsaɪkəl'] a motor vehicle with two wheels and a strong frame.
verb. ['ˈmoʊtɝˌsaɪkəl'] ride a motorcycle.
noun. ['pəˈliːsmən'] a member of a police force.