Kleene star

noun

The asterisk, *, used as an operator to concatenate zero or more strings from a given set, widely used in regular expressions.

Meanings

nounKleene star (plural Kleene stars)

plural Kleene stars

  1. computingThe asterisk, *, used as an operator to concatenate zero or more strings from a given set, widely used in regular expressions.

    Synonyms: Kleene operator

Synonyms & antonyms

nounThe asterisk, *, used as an operator to concatenate zero or more strings from a given set, widely used in regular expressions.

Origin

After Stephen Cole Kleene (1909-1994), American mathematician.

Full word history & related roots →

Translations

Bulgarian звезда на Клини
  • звезда на Клини (zvezda na Klini)Translations
Finnish Kleenen tähti
  • Kleenen tähtiTranslations
French étoile de Kleene
  • étoile de KleeneTranslations
Cite this entry
APA

Kleene star. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Kleene%20star

MLA

“Kleene star.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Kleene%20star. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Kleene star,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Kleene%20star.

Source: Kleene star on Wiktionary, CC BY-SA 4.0.