Definition of bi-wing
- As in years past, four vintage bi-wing warplanes flew in formation over the grounds, contrails billowing behind them before reversing their course for another low fly-by.
- —Coty Dolores Miranda, Arizona Republic, 1 Mar. 2010
bi-wingor less commonly biwing noun, plural bi-wings also biwings
- Instead, Grumman designed its own fighter—the XFF-1, a stubby biwing with a crew of two under a transparent canopy.
- —Norman Polmar, Naval History, June 2011