WordReference Random House Unabridged Dictionary of American English © 2020
wedge heel, 
  • Clothinga heel formed by a roughly triangular or wedgelike piece that extends from the front or middle to the back of the sole, used on women's shoes.

  • Collins Concise English Dictionary © HarperCollins Publishers::
    wedge heel n
    1. a raised shoe heel with the heel and sole forming a solid block
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