(brɪˈduːn) n (Horse Training, Riding & Manège) a horse's bit: a small snaffle used in double bridles[C18: from French bridon, from bride bridle; compare Middle English bride]Thesaurus
Noun
1.bridoon - a bit resembling a snaffle bit; used with a separate curbbit - piece of metal held in horse's mouth by reins and used to control the horse while riding; "the horse was not accustomed to a bit"