Ambrein :: Ambrein (n.) A fragrant substance which is the chief constituent of ambergris.
Bearing Rein :: Bearing rein () 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.
Checkrein :: Checkrein (n.) A short rein looped over the check hook to prevent a horse from lowering his head; -- called also a bearing rein.
Checkrein :: Checkrein (n.) A branch rein connecting the driving rein of one horse of a span or pair with the bit of the other horse.
Darrein :: Darrein (a.) Last; as, darrein continuance, the last continuance..
Helleborein :: Helleborein (n.) A poisonous glucoside accompanying helleborin in several species of hellebore, and extracted as a white crystalline substance with a bittersweet taste. It has a strong action on the heart, resembling digitalin..