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Meaning of commutative

com•mu•ta•tive

Pronunciation: (ku-my'tu-tiv, kom'yu-tā"tiv), [key]
— adj.
  1. of or pertaining to commutation, exchange, substitution, or interchange.
  2. commutative law for multiplication.
    1. (of a binary operation) having the property that one term operating on a second is equal to the second operating on the first, as a × b = b × a.
    2. having reference to this property:commutative law for multiplication.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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