Equestrian

Part of speech: noun (n.)

One who rides on horseback; a horseman; a rider.

Part of speech: adjective (a.)

1. Of or pertaining to horses or horsemen, or to horsemanship; as, equestrian feats, or games.

2. Being or riding on horseback; mounted; as, an equestrian statue. An equestrian lady appeared upon the plains. Spectator.

3. Belonging to, or composed of, the ancient Roman equities or knights; as, the equestrian order. Burke.