'Racing' definitions:

Definition of 'racing'

From: WordNet
noun
The sport of engaging in contests of speed

Definition of 'Racing'

From: GCIDE
  • Race \Race\, v. i. [imp. & p. p. Raced (r[=a]st); p. pr. & vb. n. Racing (r[=a]"s[i^]ng).]
  • 1. To run swiftly; to contend in a race; as, the animals raced over the ground; the ships raced from port to port. [1913 Webster]
  • 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. [1913 Webster]

Definition of 'Racing'

From: GCIDE
  • Racing \Ra"cing\ (r[=a]"s[i^]ng), a. & n. from Race, v. t. & i. [1913 Webster]
  • Racing crab (Zool.), an ocypodian. [1913 Webster]