Pronunciation: (an"tē-ku-myOO'tu-tiv, -kom'yu-tā"-, an"tī-), [key]
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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.