Source : Webster's Revised Unabridged Dictionary (1913)

Curvet \Cur"vet\ (k[^u]r"v?t or k[^u]r-v?t"; 277), n. [OE.
   corvet, It. corvetta: cf. F. courbette. See {Curve}, and cf.
   {Corvetto}.]
   1. (Man.) A particular leap of a horse, when he raises both
      his fore legs at once, equally advanced, and, as his fore
      legs are falling, raises his hind legs, so that all his
      legs are in the air at once.

   2. A prank; a frolic.

Curvet \Cur"vet\, v. t.
   To cause to curvet. --Landor.

Curvet \Cur"vet\, v. i. [imp. & p. p. {Curveted} or {-vetted};
   p. pr. & vb. n. {Curveting} or {-vetting}.] [Cf. It.
   corvettare. See {Curvet}, n.]
   1. To make a curvet; to leap; to bound. ``Oft and high he did
      curvet.'' --Drayton.

   2. To leap and frisk; to frolic. --Shak.

Source : WordNet®

curvet
     n : a light leap by a horse in which both hind legs leave the
         ground before the forelegs come down [syn: {vaulting}]
     v : perform a leap where both hind legs come off the ground, of
         a horse
     [also: {curvetting}, {curvetted}]