Meaning of PERMUTATION in English

/ ˌpɜːmjuˈteɪʃn; NAmE ˌpɜːrm-/ noun

[ usually pl. ] any of the different ways in which a set of things can be ordered :

The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.



late Middle English (in the sense exchange, barter ): via Old French from Latin permutatio(n-) , from the verb permutare change completely, from per- through, completely + mutare to change.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.