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Achilles notch

noun

Definition of Achilles notch

:a U-shaped or V-shaped indentation in the collar of a shoe that is designed to lessen the pressure that the shoe puts on the wearer's Achilles tendon
  • An Achilles notch in shoes or mid- and low-top boots will accommodate the Achilles tendon in plantar flexion.
  • —John Vonhof,  Fixing Your Feet,  2006

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First Known Use of achilles notch

1987

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