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Character position:

operculum

Length / number of characters: 9
Number of words: 1

  • a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
  • The lid of a pitcherform leaf
  • The lid of the urnlike capsule of mosses
  • Any lidlike or operculiform process or part
  • The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians
  • The principal opercular bone in the upper and posterior part of the gill cover
  • The lid closing the aperture of various species of shells, as the common whelk
  • Any lid-shaped structure closing the aperture of a tube or shell

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