Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Relating to, involving, or characterized by substitution, interchange, or exchange.
  • adj. Independent of order. Used of a logical or mathematical operation that combines objects or sets of objects two at a time. If a × b = b × a, the operation indicated by × is commutative.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Such that the order in which the operands are taken does not affect their image under the operation.
  • adj. Having a commutative operation.
  • adj. Such that any two sequences of morphisms with the same initial and final positions compose to the same morphism.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Relative to exchange; interchangeable; reciprocal.
  • adj. having the property of commutativity.

from The Century Dictionary and Cyclopedia

  • Relating to exchange; interchangeable; mutual: as, commutative justice (that is, justice which is mutually done and received).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. (of a binary operation) independent of order; as in e.g.

Etymologies

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