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leading edge

[lee-ding] /ˈli dɪŋ/
Aeronautics. the edge of an airfoil or propeller blade facing the direction of motion.
something that is or represents the most advanced or innovative aspect of a field, activity, profession, etc.; forefront; vanguard:
the leading edge of technology.
Origin of leading edge
First recorded in 1875-80
Related forms
leading-edge, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for leading edge
Contemporary Examples
Historical Examples
  • I grabbed the leading edge of the wing to stop from falling.

    The Night of the Long Knives Fritz Reuter Leiber
  • Those things in the leading edge of your wings are guns, understand?

  • Plumb-lines must be dropped over the leading edge of the top surface wherever struts occur, and also near the fuselage.

  • Now stand in front of it and line up the leading edge with the main spar, rear spar, and trailing edge.

  • A machine generally on M. Farman lines, but with different shaped ailerons and corners of the leading edge rounded.

  • Its white hands gripped the front of wings, the leading edge of struts and wires.

    Test Pilot David Goodger (
  • The girl held fast to his rope and took a step toward the leading edge of the plane wing.

    The Flying Reporter

    Lewis E. (Lewis Edwin) Theiss
British Dictionary definitions for leading edge

leading edge

the forward edge of a propeller blade, aerofoil, or wing Compare trailing edge
(electrical engineering) the part of a pulse signal that has an increasing amplitude
  1. the leading position in any field
  2. (as modifier): leading-edge technology
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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