ALL meanings of subfactorial
- noun subfactorial (mathematics, combinatorics) The result of deranging a number. In equations, it is usually symbolised by an exclamation mark (!) before the number being deranged (as opposed to factorials, where the exclamation mark occurs after the number). 0
- noun subfactorial the number of ways a group of objects can be arranged so that none of the objects are in their original or correct place 0