Definition of permutation
1 : often major or fundamental change (as in character or condition) based primarily on rearrangement of existent elements <the system has gone through several permutations>; also : a form or variety resulting from such change <technology available in various permutations>
2 a : the act or process of changing the lineal order of an ordered set of objects b : an ordered arrangement of a set of objects
permutationalplay \-shnəl, -shə-nəl\ adjective
Did You Know?
Permutation has not changed all that much since it was borrowed into Middle English from Anglo-French in the 14th century as permutacioun, meaning "exchange, transformation." Permutacioun traces back to the Latin verb permutare, meaning "to change thoroughly, exchange," and ultimately derives from the Latin mutare, to change. Other descendants of mutare in English include commute, mutant, and mutual. Permutation also has a specific application in the field of mathematics relating to the ordering of a given set of objects. For example, permutations of items a, b, and c are abc, acb, bac, etc.
Origin and Etymology of permutation
Middle English permutacioun exchange, transformation, from Anglo-French, from Latin permutation-, permutatio, from permutare
First Known Use: 14th century
PERMUTATION Defined for English Language Learners
Definition of permutation for English Language Learners
: one of the many different ways or forms in which something exists or can be arranged
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