delta wing

noun
a triangularly shaped surface that serves as both wing and horizontal stabilizer of a space vehicle and some supersonic aircraft.

Origin:
1945–50

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World English Dictionary
delta wing
 
n
a triangular sweptback aircraft wing

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
The tip of a delta wing is often, but not always, cut off.
Make a graph comparing the distances flown by the rotor motor, bag balloon, and delta wing glider.
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