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periproct

[per-uh-prokt]
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noun
  1. (in certain echinoids) that part of the body surface bordering the anus.
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Origin of periproct

1875–80; peri- + -proct < Greek prōktós anus
Related formsper·i·proc·tal, per·i·proc·tic, per·i·proc·tous, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018