delta wing
Noun
Meaning
an airplane with wings that give it the appearance of an isosceles triangle
Source: WordNetSynonyms
Hypernyms
Examples
Two Dassault Mirage G prototypes, one with wings swept The delta wing is a triangle shape which may be used for a number of reasons.
The major feature of the redesign was to replace the cigar-shaped secondary hull with a larger, triangle-shaped " delta wing " section.
One example is the winged orbit vehicle that uses a delta wing for maneuvering during descent much like a conventional glider.
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.