Trapdoor

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Trapdoor \Trap"door`\, n.
     1. (Arch.) A lifting or sliding door covering an opening in a
        roof or floor.
        [1913 Webster]
  
     2. (Mining) A door in a level for regulating the ventilating


        current; -- called also {weather door}. --Raymond.
        [1913 Webster]
  
     {Trapdoor spider} (Zool.), any one of several species of
        large spiders which make a nest consisting of a vertical
        hole in the earth, lined with a hinged lid, like a
        trapdoor. Most of the species belong to the genus
        {Cteniza}, as the California species ({Cteniza
        Californica}).
        [1913 Webster]