— commutatively , adv. — commutativity , n.
/keuh myooh"teuh tiv, kom"yeuh tay'tiv/ , adj.
1. of or pertaining to commutation, exchange, substitution, or interchange.
2. Math.
a. (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.
b. having reference to this property: commutative law for multiplication.
[ 1525-35; commutativus, equiv. to L commutat ( us ) (ptp. of commutare; see COMMUTE, -ATE 1 ) + -ivus -IVE ]