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Sweepback is the backward angle of the front portion an airplane's wing.
An example of a sweepback is the slant of an airplane wing or a whale fin.
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
- a backward slant of an airfoil, esp. of a wing
- the angle formed by some reference line along an airplane wing and the lateral axis of the airplane
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The backward slant of the leading edge of an airfoil.