Adjacent Words

trapdoor definitions

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Merriam Webster's

noun Date: 14th century a lifting or sliding door covering an opening (as in a roof, ceiling, or floor)

Oxford Reference Dictionary

n. a door or hatch in a floor, ceiling, or roof, usu. made flush with the surface. Phrases and idioms: trapdoor spider any of various spiders, esp. of the family Ctenizidae, that make a hinged trapdoor at the top of their nest.

Webster's 1913 Dictionary

Trapdoor Trap"door`, n. 1. (Arch.) A lifting or sliding door covering an opening in a roof or floor. 2. (Mining) A door in a level for regulating the ventilating current; -- called also weather door. --Raymond. Trapdoor spider (Zo["o]l.), 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 (C. Californica).

Collin's Cobuild Dictionary

also trap door(trapdoors) A trapdoor is a small horizontal door in a floor, a ceiling, or on a stage. N-COUNT