Delta wing
A delta wing is a wing used on fixed-wing aircraft, mainly supersonic fighter aircraft. Delta wings are triangles. Some were "tailless" (which means they had no elevators) and others were "tailed." Many of the Dassault Aviation Mirages had delta wings (like the Mirage III, Mirage V, Mirage 50, and Mirage 2000).
Delta winged fighters
Delta Wing Media
Convair made several supersonic deltas. This is an F-106 Delta Dart, a development of their earlier F-102 Delta Dagger
Aérospatiale-BAC Concorde shows off its ogee wing
The Saab 35 Draken was a successful tailless double-delta design