英和和英

別の表記

• trap door, trap-door

語源

From trap +‎ door.

発音

• (Received Pronunciation) enPR: trăpdô, IPA: /ˈtræpdɔː/
• (General American) enPR: trăpdôr, IPA: /ˈtræpdoɹ/

名詞

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; a weather door.

同意語

• drop

派生語

動詞

trapdoor (third-person singular simple present trapdoors, present participle trapdooring, simple past and past participle trapdoored)

1. (cryptography, transitive) To subvert (a cryptographic scheme) by means of a secret parameter that makes the trapdoor function easy to compute.
2. (surgery, intransitive) To form a trapdoor deformity.

参照