E*ques"tri*an (?), a. [L. equester, from eques horseman, fr. equus horse: cf. F. équestre. See Equine.] 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.

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

E*ques"tri*an, n. One who rides on horseback; a horseman; a rider.

• of horseback riding or horseback riders
       They were an equestrian people.
       After his death an equestrian statue was created.
  
• an equestrian person; one who rides on horseback