Breeding: A female that has never been bred.
Harness racing: A stallion, mare or gelding that has never won a heat or race at the gait at which it is entered to start and for which a purse is offered.
Thoroughbred racing: A horse or rider that has not won a race.
A female horse 4 years of age or older.
A substance, medicine or remedy used for healing or masking pain.