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[rek-tuh-fahy-er] /ˈrɛk təˌfaɪ ər/
a person or thing that rectifies.
Electricity. an apparatus in which current flows more readily in one direction than the other, for changing an alternating current into a direct current.
the apparatus that in distillation separates the most volatile material by condensing it; condenser.
1605-15; rectify + -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rectifier
  • The usual way to do this would be to use a rectifier-a device that converts alternating to direct current.
  • At the time of the inspection, the operator had not conducted any rectifier inspections.
  • The alternator is connected to a battery bank via rectifier.
British Dictionary definitions for rectifier


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
(chem) an apparatus for condensing a hot vapour to a liquid in distillation; condenser
a thing or person that rectifies
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for rectifier

1610s, agent noun from rectify.

Online Etymology Dictionary, © 2010 Douglas Harper
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rectifier in Science
An electrical device that converts alternating current to direct current. Rectifiers are most often made of a combination of diodes, which allow current to pass in one direction only. Compare converter, transformer.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for rectifier

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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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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