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| lead·ing edge [ lding ej ] (plural lead·ing edg·es) |
noun |
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| Definition: |
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1. most advanced position: the forefront of development in technology, science, or some other field
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hyphenated when used before a noun
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  at the leading edge of technology
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2. front edge: the forward edge of an aircraft wing, propeller, or airfoil
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3. inner edge of curtain: the vertical edge of a curtain that faces the middle of the window
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