Trapdoor (disambiguation)
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Look up trapdoor in Wiktionary, the free dictionary.
A trapdoor is a door set into a floor or ceiling.
The term may also have the following meanings:
- Trapdoor function, a type of mathematical function widely used in the field of cryptography.
- Trap Door (magazine), a Hugo Award-nominated science fiction fanzine edited by Robert Lichtman
- The Trap Door, a British animated series.
- The Trap Door (game), a computer game based on the animated series.
- In computing, "trapdoor" is often a mistaken synonym for a "backdoor" a method used to circumvent normal authorization methods.
- In firearms, a trapdoor is a type of breechblock.
- "Trap Door", an Ozzy Osbourne song from the album Black Rain
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