speedway /ˈspiːdweɪ/ noun6 •A racetrack venue designated especially for the sport of auto racing. •A positive-camber banked oval racing circuit, designed for high speed cornering, racing anywhere on the length of the track. •A size of paved banked oval racetrack, smaller than superspeedways, but larger than a mile. •A form of motorcycle racing on flat (without camber) oval dirt tracks using motorcycles with neither brakes nor gears. •A form of bicycle racing on flat (nonbanked) oval dirt tracks. •(US) A road for high speed traffic; an expressway. formsspeedways