Entry 1 sense Webster, 1913 inverted rectifier /ĭnˌ-vẽrt'-ĭd rĕk'-təf-īˌ-ẽr/ · in·vert·ed rec·ti·fi·er · IPA 01 n. A device which converts direct current to alternating current. 1. A device which converts direct current to alternating current.(Electricity)