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1. A series of stalls with doors that open simultaneously at the beginning of a race.
2. A movable barrier that starts an automatic timer when a competitor, such as a skier, moves through it.
1. (Horse Racing) a movable barrier so placed on the starting line of a racecourse that the raising of it releases all the contestants simultaneously
2. (Horse Racing) the US name for starting stalls
a movable barrier for lining up and giving an equal start to the entries in a horse or dog race.