trapdoor

See also: trap door

English

Alternative forms

Etymology

trap +‎ door

Noun

trapdoor (plural trapdoors)

  1. A hinged or sliding door set into a floor or ceiling.
  2. (theater) Such a trap set into the floor of a stage to allow fast exits and entrances.
  3. (computing) A secret method of obtaining access to a program or online system; a backdoor.
  4. (mathematics, cryptography) The special information that permits the inverse of a trapdoor function to be easily computed.
  5. (mining) A door in a level for regulating the ventilating current; weather door.
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Synonyms

Derived terms

Translations
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