Noun
A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction.
Source: Webster's dictionaryAs a result, he was able to make the distant needle move in the direction set by the commutator on the other end of the line. Source: Internet
A typical high-power spark gap was a rotating commutator with six to twelve contacts per wheel, nine inches (229 mm) to a foot wide, driven by about 2,000 volts DC. Source: Internet
Flexible plate is used in electric motor and generator armatures, field coil insulation, and magnet and commutator core insulation. Source: Internet
Commutator and cross product The commutator of two octonions x and y is given by : This is antisymmetric and imaginary. Source: Internet
Aside from the last event, which remained a mystery despite postflight testing of the commutator, all of the problems on Apollo 7 were quickly resolved and some of them also involved equipment or procedures that would not be used on subsequent missions. Source: Internet
Due to the anticommutativity of the commutator, the notions of a left and right ideal in a Lie algebra coincide. Source: Internet