Word.ws English Dictionary

trapdoor function

trapdoor function noun: a function that is easy to compute in one direction but difficult to compute in the opposite direction (finding its inverse) without special information.

Noun

trapdoor function (plural trapdoor functions)

  1. A function that is easy to compute in one direction but difficult to compute in the opposite direction (finding its inverse) without special information.

Forms of trapdoor function

pluraltrapdoor functions

Origin of trapdoor function

From the idea that it is easy to fall through a trapdoor but difficult to climb back out.

Questions about trapdoor function

What does trapdoor function mean?
Trapdoor function means a function that is easy to compute in one direction but difficult to compute in the opposite direction (finding its inverse) without special information.
What part of speech is trapdoor function?
Trapdoor function is a noun.
What is the plural of trapdoor function?
The plural of trapdoor function is trapdoor functions.

Words near trapdoor function in the dictionary

  1. trapball
  2. trapdoor
  3. trapdoor deformities
  4. trapdoor deformity
  5. trapdoor effect
  6. trapdoor function
  7. trapdoor functions
  8. trapdoor spider
  9. trapdoor spiders
  10. trapdoored
  11. trapdooring

Source and license

Adapted from Wiktionary: trapdoor function (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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