‖ demi-bateau
(dəmibato)
[Fr.; = half-boat: see bateau.]
A half-bateau used in constructing pontoons.
| 1853 Sir H. Douglas Milit. Bridges (ed. 3) 98 Those [pontoons] of greater breadth are formed by uniting two demi-bateaux at the broader ends so as to constitute an entire bateau. |