Definition of "delta wing" []

• An aircraft with swept-back wings that give it the appearance of an isosceles triangle. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "* What attracted Armstrong to the HP-115 was how its highly swept delta wing configuration, when flown in steep, unpowered, low L/D approaches and landings, could generate data useful in the design of the Dyna-Soar vehicle."