Permulator

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Permulator \Per"mu*la`tor\, n. (Elec.)
     A special form of rotary converter with stationary commutator
     and rotating brushes, in which the exciting field is induced
     by the alternating current in a short-circuited magnetic core
     instead of being produced by an external magnet.
     [Webster 1913 Suppl.]