Source : Webster's Revised Unabridged Dictionary (1913)

Single-foot \Sin"gle-foot`\, n.
   An irregular gait of a horse; -- called also {single-footed
   pace}. See {Single}, v. i.

         Single-foot is an irregular pace, rather rare,
         distinguished by the posterior extremities moving in
         the order of a fast walk, and the anterior extremities
         in that of a slow trot.                  --Stillman
                                                  (The Horse in
                                                  Motion.)