Definitions for coursingˈkɔr sɪŋ, ˈkoʊr-
Random House Webster's College Dictionary
cours•ingˈkɔr sɪŋ, ˈkoʊr-(n.)
the sport of pursuing game with dogs that follow by sight rather than by scent.
Origin of coursing:
hunting with dogs (usually greyhounds) that are trained to chase game (such as hares) by sight instead of by scent
The "sport" of chasing wild animals, especially hares, with dogs by sight rather than by scent
the pursuit or running game with dogs that follow by sight instead of by scent