commutant in English dictionary commutant Meanings and definitions of "commutant" (algebra, logic) The subset of all elements of a semigroup that commute with the elements of a given subset noun (algebra, logic) The subset of all elements of a semigroup that commute with the elements of a given subset more Grammar and declension of commutant commutant ( plural commutants) commutant (plural commutants) more Sample sentences with "commutant" Declension Stem Try again Available translations French German Irish Italian Russian Tamil Vietnamese Authors