D defs.my
Entry 1 sense Webster, 1913

Bearing rein

/bĕr'-ĭng rān/ · Bear·ing rein · IPA
01 A short rein looped over the check hook or the hames to keep the horse's head up; -- called in the United States a checkrein.
  1. 1.
    A short rein looped over the check hook or the hames to keep the horse's head up; -- called in the United States a checkrein.