01 n. A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a bearing rein.
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1.
A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a bearing rein. Also: bearing rein
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2.
A branch rein connecting the driving rein of one horse of a span or pair with the bit of the other horse.