# permutation

- the act of permuting or permutating; alteration; transformation.
- Mathematics.
- the act of changing the order of elements arranged in a particular order, as abc into acb, bac, etc., or of arranging a number of elements in groups made up of equal numbers of the elements in different orders, as a and b in ab and ba; a one-to-one transformation of a set with a finite number of elements.
- any of the resulting arrangements or groups.Compare combination(def 8b).

## Origin of permutation

## Synonyms for permutation

See more synonyms for on Thesaurus.com## Examples from the Web for permutation

### Historical Examples of permutation

What artifice can we then employ to provoke this second permutation?

Bramble-bees and OthersJ. Henri Fabre

The first permutation makes the second seem very probable, although I cannot as yet conceive a means of realizing it.

Bramble-bees and OthersJ. Henri Fabre

This indicates the distinction between the permutation of letters and the transition of letters.

The English LanguageRobert Gordon Latham

It is clear how very different the results would become by the permutation and combination of these diverse factors.

Life Movements in PlantsSir Jagadis Chunder Bose

He is not a permutation and combination of old elements, transferred through the parents.

Fantasia of the UnconsciousD. H. Lawrence

## permutation

- maths
- an ordered arrangement of the numbers, terms, etc, of a set into specified groupsthe permutations of a, b, and c, taken two at a time, are ab, ba, ac, ca, bc, cb
- a group formed in this way. The number of permutations of n objects taken r at a time is n !/(n – r)!Symbol: n P r Compare combination (def. 6)

- a combination of items made by reordering
- an alteration; transformation
- a fixed combination for selections of results on football poolsUsually shortened to: perm

## Word Origin for permutation

## Word Origin and History for permutation

mid-14c., from Old French permutacion "change, shift" (14c.), from Latin permutationem (nominative permutatio) "a change, alteration, revolution," noun of action from past participle stem of permutare "change thoroughly, exchange," from per- "thoroughly" (see per) + mutare "to change" (see mutable).