adj. 1. Of or relating to horseback riding or horseback riders. 2. Depicted or represented on horseback: an equestrian statue of a famous monarch. n. One who rides a horse or performs on horseback. [From Latin equester, equestr-, from eques, horseman, from equus, horse; see ekwo- in the Appendix of Indo-European roots.] e·questri·an·ism, e·questri·an·ship n. |
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