bearing rein

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A rein for a horse; a checkrein.

from The Century Dictionary.

• noun The rein by which the head of a horse is held up in driving.

from the GNU version of the Collaborative International Dictionary of English.

• 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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A checkrein.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a rein designed to keep the horse's head in the desired position