Definition of oxer in English:

1An ox fence.

1. 1.1 (in showjumping) a jump consisting of a brush fence with a guard rail on one or both sides.
   Example sentencesExamples

   • They got in short to the big triple combination, and Ramsay called out to the mare, asking for a tremendous effort as she stretched out over the huge final oxer, leaving the rails in the cups, and giving them a double clear.
   • I grew uneasy and a flock of birds flew out of the oxer when I tried to jump it.
   • Both noted that the line of fences 6, 7 and 8, which was a vertical of red planks to the twenty-foot water jump to a Liverpool oxer of white poles, was most tricky.
   • She continued bringing poles of different colors to the jumps, verticals on seventh hole and oxers on sixth.
   • The next fence was most likely the easiest in the course, a little oxer, and Rocky was best over oxers.