|1.||an electronic device, such as a semiconductor diode or valve, that converts an alternating current to a direct current by suppression or inversion of alternate half cycles|
|2.||chem an apparatus for condensing a hot vapour to a liquid in distillation; condenser|
|3.||a thing or person that rectifies|
device that converts alternating electric current into direct current. It may be an electron tube (either a vacuum or a gaseous type), vibrator, solid-state device, or mechanical device. Direct current is necessary for the operation of many devices such as radio and television receivers and certain power tools.
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