B / bĭprōrus
adjective

bĭprōrus

fem. bĭprōra · neut. bĭprōrum
bis-prora, of a ship
having two prows
having two prows (cf Plin. 6, 22, 24, § 82): navis, Hyg. Fab. 168; and besides only id. ib. 277.