pseudorandom

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adjective

Of a sequence of numbers, such that it has all the properties of a random sequence following some probability distribution (except true randomness), but is actually generated using a deterministic algorithm.

UncommonScrabble 18

Meanings

adjectivepseudorandom (not comparable)

alternative pseudo-random

  1. not comparableOf a sequence of numbers, such that it has all the properties of a random sequence following some probability distribution (except true randomness), but is actually generated using a deterministic algorithm.

    Simple random samples were chosen from an ordered list with the aid of a Pseudo Random Digit Generator affiliated with the Computer Data Corporation Fortran Compiler.

    1941, Isabel Fonseca, Memoirs, Society for American Archaeology, Issues 25-30, Society for American Archaeology, page 31
    1 more example

    Elite uses a pseudorandom number generator based on Tribonacci numbers. Unlike Fibonacci numbers, where the nth term in the series is based on the previous two terms, Tribonacci numbers use the previous three terms: […]

    2016, John Aycock, Retrogame Archeology, Springer, →ISBN, page 113

Origin

  1. Ancient Greekψεύδω (pseúdō)
  2. Ancient Greekψευδής (pseudḗs)
  3. Middle Englishpseudo-
  4. Englishpseudo-
  5. Proto-Indo-European*h₃er-
  6. Proto-Indo-European*h₃reyH-
  7. Proto-Germanic*rinnaną
  8. Proto-West Germanic*rinnan
  9. Frankish*randij
  10. Old Frenchrandir
  11. Old Frenchrandon
  12. Middle Englishrandoun
  13. Englishrandon
  14. Englishrandom
  15. Englishpseudorandom

From pseudo- + random.

Full word history & related roots →

Translations

Chinese Mandarin 僞隨機 /伪随机
  • 僞隨機 /伪随机 (wěisuíjī)appearing to be random
Czech pseudonáhodný
  • pseudonáhodnýappearing to be random
Finnish näennäissatunnainen
  • näennäissatunnainenappearing to be random
French pseudo-aléatoire
  • pseudo-aléatoireappearing to be random
German pseudozufällig, scheinzufällig
  • pseudozufälligappearing to be random
  • scheinzufälligappearing to be random
Greek ψευδοτυχαίος
  • ψευδοτυχαίος (psevdotychaíos)appearing to be random
Hungarian álvéletlen
  • álvéletlenappearing to be random
Polish pseudolosowy
  • pseudolosowyappearing to be random
Russian псевдослуча́йный
  • псевдослуча́йный (psevdoslučájnyj)appearing to be random
Slovak pseudonáhodný
  • pseudonáhodnýappearing to be random
Spanish pseudoaleatorio
  • pseudoaleatorioappearing to be random
Cite this entry
APA

pseudorandom. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/pseudorandom

MLA

“pseudorandom.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pseudorandom. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “pseudorandom,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/pseudorandom.

Source: pseudorandom on Wiktionary, CC BY-SA 4.0.