An electrical switch, in a generator or motor, that periodically reverses the direction of an electric current.
A binary map in a given group G, given by [g, h] = ghg⁻¹h⁻¹, where g and h are elements of G, which yields the group's identity if and only if the group operation commutes for g and h.
A binary map in a given ring R, given by [a, b] = ab − ba, where a and b are elements of R, which yields the ring's zero element if and only if the multiplication operation commutes for a and b.
A switch used to isolate a portion of an electrical circuit.
A lack of connection or accord; a mismatch.
The deliberate severing of ties with family, friends, etc. considered antagonistic towards Scientology.
A break or interruption in an existing connection, continuum, or process; disconnection.
To sever or interrupt a connection.
To remove the connection between an appliance and an electrical power source.
Of a person, to become detached or withdrawn.