Meaning ofcommutatorin English

Noun

1. an electrical switch reversing current direction
   The engineer installed a commutator in the motor to reverse the current flow.
2. a binary map measuring group operation commutativity (in group theory)
   The mathematician studied the commutator to analyze the group's commutativity property.
3. a binary map measuring multiplication commutativity (in ring theory)
   The researcher used the commutator to examine the commutativity of the ring elements.