Noun
an airplane with wings that give it the appearance of an isosceles triangle
Source: WordNetTwo Dassault Mirage G prototypes, one with wings swept The delta wing is a triangle shape which may be used for a number of reasons. Source: Internet
The major feature of the redesign was to replace the cigar-shaped secondary hull with a larger, triangle-shaped " delta wing " section. Source: Internet
One example is the winged orbit vehicle that uses a delta wing for maneuvering during descent much like a conventional glider. Source: Internet
With a delta wing running most of the length of the fuselage, this was no longer easy; moving the wing would leave it in front of the nose or behind the tail. Source: Internet