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groin

noun

  1. the hollow or fold where the abdomen joins either thigh
  2. Archit.
    1. the sharp, curved edge formed at the junction of two intersecting vaults
    2. the rib of wood, stone, etc. covering this edge
  3. a strong, low sea wall built at a right angle to the coast to reduce shoreline erosion, esp. of a beach

transitive verb

to build or provide with groins

See groin in American Heritage Dictionary 4

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