Lexic.us

Definition of Trapdoor

1. n. A lifting or sliding door covering an opening in a roof or floor.

Definition of Trapdoor

1. Noun. A hinged or sliding door set into a floor or ceiling. ¹

2. Noun. (context: theater) Such a trap set into the floor of a stage to allow fast exits and entrances. ¹

3. Noun. (computing) A secret method of obtaining access to a program or online system; a backdoor. ¹

4. Noun. (mathematics cryptography) The special information that permits the inverse of a trapdoor function to be easily computed. ¹

¹ Source: wiktionary.com

Definition of Trapdoor

1. a lifting or sliding door covering an opening [n -S]

Medical Definition of Trapdoor

1. 1. A lifting or sliding door covering an opening in a roof or floor. 2. A door in a level for regulating the ventilating current; called also weather door. Trapdoor spider, 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). Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Trapdoor

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