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anticommutative

[an-tee-kuh-myoo-tuh-tiv, -kom-yuh-tey-, an-tahy-]
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adjective Mathematics.
  1. (of a binary operation) having the property that one term operating on a second is equal to the negative of the second operating on the first, as ab = −ba.
  2. (of two matrices) defined by an anticommutative operation.
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Origin of anticommutative

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018