delta wing

Etymology
From the triangular shape of the majuscule Greek letter delta (Δ).

Noun

 * 1)  An aircraft wing having a swept-back shape in the form of an isosceles triangle; used mostly on supersonic aircraft

Translations

 * Finnish: deltasiipi
 * German: Deltaflügel
 * Greek:
 * Italian: ala a delta
 * Russian: треуго́льное крыло́