Bute
Shortened word for phenylbutazone, the common non-steroidal medication legal at most racetrack.
Bleeder
A horse that bleeds due to a ruptured blood vessel during a race or workout. The medication Lasix can fix this problem.
State-Bred
A horse bred in a particular state and thus eligible to race in restricted state-bred races. These can be anything from maiden races to stakes events.