subfactorial

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noun

The amount of possible derangements of a set that has a given number of distinct elements.

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Meanings

nounsubfactorial (plural subfactorials)

plural subfactorials

  1. combinatoricsThe amount of possible derangements of a set that has a given number of distinct elements.

Origin

From sub- + factorial.

Full word history & related roots →
Cite this entry
APA

subfactorial. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/subfactorial

MLA

“subfactorial.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subfactorial. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “subfactorial,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/subfactorial.

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