double-banked \| ̷ ̷ ̷ ̷|baŋkt, -aiŋ-\adjective 1. a.of a rowboat: having two banks of rowers sitting side by side b.of an oar: manned by two rowers 2.: having two tiers < the bireme was a double-banked galley > < a double-banked frigate > < a double-banked organ >