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permutation

per·mu·ta·tion

permutation

pronunciation:
puhr myu teI shn
part of speech: noun
definition 1: the act, process, or result of change; transformation.
similar words:
change, metamorphosis
definition 2: the act of changing the order of some or all of the elements in a mathematical series, or any of the arrangements that can result from this act.
derivation: permutational (adj.)