agent
A person empowered to transact business for a stable owner or jockey, or empowered to sell or buy horses for an owner or breeder.
airing
Not running at best speed in a race.
all out
When a horse extends itself to the utmost.
all-age race
A race for two-year-olds and up.
allowances
Reductions in weights to be carried, allowed because of the conditions of the race or because an apprentice jockey is on a horse. Also, a weight reduction female horses are entitled to when racing against males, or that three-year-olds receive against older horses.
also-eligible
A horse officially entered for a race, but not permitted to start unless the field is reduced by scratches below a specified number.