Definition of trapdoor in English:

trapdoor

(also trap door)

noun

  • 1A hinged or removable panel in a floor, ceiling, or roof.

    • ‘Both sides of the hall were lined with doors and even the ceiling had trapdoors spaced at periodic intervals in it.’
    • ‘After a while, a trapdoor in the roof opened, and a girl clambered out.’
    • ‘She stared at the floor, where the trapdoor had once been.’
    • ‘Meet the trapdoor spiders, famed for their silk-lined burrows complete with emergency exits, hinged trapdoors and careful camouflage.’
    • ‘There's a trapdoor in the ceiling: the time capsule takes us up through it, and we're in the family's living quarters: the whole family gathered around the hearth.’
    • ‘He descended a ladder and went down through a trapdoor to the 5th floor.’
    • ‘We had ascended the steep staircase and out through a narrow trapdoor on to the roof of the tower, high above the battlements of his creaking ancestral pile.’
    • ‘The stricken ship is presented simply but effectively using a rope ladder for the rigging, which hung from the ceiling above a trapdoor, which served as the ship's hatchway.’
    • ‘He tiptoed over to a trapdoor in the roof and pulled it slowly.’
    • ‘And in the centre of the floor, a wooden trapdoor stood open.’
    • ‘The sailor opened the trapdoor and the rusty hinges squealed loudly.’
    • ‘Then she slowly slid open a trapdoor in the floor.’
    • ‘A scampering noise beat across the ceiling before a little trapdoor opened with a dull thud, previously completely invisible to all in the bar.’
    • ‘It was a normal looking place, some trees in the back, a little wooden house ahead, and a trapdoor on the floor.’
    • ‘It contained a trapdoor on the ceiling, which she opened and pulled out a ladder.’
    • ‘I looked at the trapdoor in the roof, which led down to where they were.’
    • ‘He strode angrily to the other trapdoor on his roof, the one that led to the two rooms where his sons dwelled.’
    • ‘Luckily for our boys, it also has a trapdoor in the floor leading conveniently into a series of maintenance tunnels which are accessible through any manhole in Montreal.’
    • ‘Obeying a nameless impulse to look up, I detected the hair-thin outline of a square trapdoor in the high ceiling.’
    1. 1.1A feature or defect of a computer system that allows surreptitious unauthorized access to data.
      • ‘Under polite questioning from the audience, he acknowledged that some closed-source commercial products have been found to have trapdoors themselves.’
      • ‘Because the source code is available for all to see, secret or accidental trapdoors cannot hope to survive expert scrutiny by third parties.’

Pronunciation:

trapdoor

/ˈtrapdôr/