Race, v. i. [imp. & p. p. Raced p. pr. & vb. n. Racing ]
1. To run swiftly; to contend in a race; as, the animals raced over the ground; the ships raced from port to port.
2. Steam Mach. To run too fast at times, as a marine engine or screw, when the screw is lifted out of water by the action of a heavy sea.
Ra·cing a. & n. from Race, v. t. & i.
Racing crab Zool., an ocypodian.
n : the sport of engaging in contests of speed