speedwayPronunciation: /ˈspiːdweɪ/Translate speedway | into German | into Spanish Definition of speedway noun [mass noun] 1British a form of motorcycle racing in which the riders race several laps around an oval dirt track, typically in a stadium. [count noun] a stadium or track used for speedway racing. 2North American a road or track used for motor-car racing. a highway for fast motor traffic. speedway in other Oxford dictionaries Definition of speedway in the US English dictionary