The Collaborative International Dictionary of English v.0.48:

Capriole \Cap"ri*ole\, v. i.
   To perform a capriole. --Carlyle.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Capriole \Cap"ri*ole\, n. [F. capriole, cabriole, It. capriola,
   fr. L. caper goat. Cf. Caper, v. i. Cabriole, Caprice,
   Cheveril.]
   1. (Man.) A leap that a horse makes with all fours, upwards
      only, without advancing, but with a kick or jerk of the
      hind legs when at the height of the leap.
      [1913 Webster]

   2. A leap or caper, as in dancing. "With lofty turns and
      caprioles." --Sir J. Davies.
      [1913 Webster]

WordNet (r) 3.0 (2006):

capriole
    n 1: (dressage) a vertical jump of a trained horse with a kick
         of the hind legs at the top of the jump
    2: a playful leap or hop [syn: caper, capriole]
    v 1: perform a capriole, of horses in dressage
    2: perform a capriole, in ballet

Moby Thesaurus II by Grady Ward, 1.0:

74 Moby Thesaurus words for "capriole":
   Highland fling, and jump, bob, bounce, bound, broad jump, buck,
   buckjump, caper, caracole, cavort, clear, curvet, cut a dido,
   cut capers, demivolt, dido, falcade, flounce, flying jump, frisk,
   galliard, gambade, gambado, gambol, gelandesprung, grand jete,
   handspring, high jump, hippety-hop, hop, hurdle, jete, jig, jump,
   jump about, jump over, jump shot, jump turn, jump-hop, jump-off,
   lavolta, leap, leap over, leapfrog, long jump, morris, negotiate,
   overjump, overleap, overskip, pole vault, pounce, pounce on,
   pounce upon, prance, ramp, romp, running broad jump,
   running high jump, saut de basque, ski jump, skip, spring, start,
   start aside, start up, steeplechase, tour jete, trip, updive,
   upleap, upspring, vault