Source : Webster's Revised Unabridged Dictionary (1913)

Canter \Can"ter\, n. [An abbreviation of Caner bury. See
   Canterbury gallop, under {Canterbury}.]
   1. A moderate and easy gallop adapted to pleasure riding.

   Note: The canter is a thoroughly artificial pace, at first
         extremely tiring to the horse, and generally only to be
         produced in him by the restraint of a powerful bit,
         which compels him to throw a great part of his weight
         on his haunches . . . There is so great a variety in
         the mode adopted by different horses for performing the
         canter, that no single description will suffice, nor
         indeed is it easy . . . to define any one of them. --J.
         H. Walsh.

Canter \Can"ter\, v. i. [imp. & p. p. {Cantered}; p. pr. & vb.
   n. {Cantering}.]
   To move in a canter.

Canter \Can"ter\, v. t.
   To cause, as a horse, to go at a canter; to ride (a horse) at
   a canter.

Canter \Cant"er\, n.
   1. One who cants or whines; a beggar.

   2. One who makes hypocritical pretensions to goodness; one
      who uses canting language.

            The day when he was a canter and a rebel.
                                                  --Macaulay.

Source : WordNet®

canter
     n : a smooth 3-beat gait; between a trot and a gallop [syn: {lope}]
     v 1: ride at a canter; "The men cantered away"
     2: go at a canter, of horses
     3: ride at a cantering pace; "He cantered the horse across the
        meadow"