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.
Origin: L. Equester, from eques horseman, fr. Equus horse: cf. F. Equestre. See equine.
One who rides on horseback; a horseman; a rider.