What is a boat; esp. a flat-bottomed, clumsy boat used on the Canadian lakes and rivers. [Written also, but less properly, batteau.] Bateau bridge, a floating bridge supported by bateaux called?

bateau — A boat; esp. a flat-bottomed, clumsy boat used on the Canadian lakes and rivers. [Written also, but less properly, batteau.] Bateau bridge, a floating bridge supported by bateaux. (Webster's 1913.)