/hak"euh mawr', -mohr'/ , n.
1. a simple looped bridle, by means of which controlling pressure is exerted on the nose of a horse, used chiefly in breaking colts.
2. Western U.S. any of several forms of halter used esp. for breaking horses.
[ 1840-50, Amer.; alter. (by folk etym.) of Sp jáquima headstall shaqimah ]