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Verb: commutate  'kóm-yu,teyt
  1. Reverse the direction of (an alternating electric current) each half cycle so as to produce a unidirectional current
    "The commutate pulse width is made variable to enable the power to increase"

Derived forms: commutated, commutates, commutating

Type of: change by reversal, reverse, turn

Encyclopedia: Commutate