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rectifier

[rek-tuh-fahy-er] /ˈrɛk təˌfaɪ ər/
noun
1.
a person or thing that rectifies.
2.
Electricity. an apparatus in which current flows more readily in one direction than the other, for changing an alternating current into a direct current.
3.
the apparatus that in distillation separates the most volatile material by condensing it; condenser.
Origin of rectifier
1605-1615
First recorded in 1605-15; rectify + -er1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for rectifier

rectifier

/ˈrɛktɪˌfaɪə/
noun
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for rectifier
n.

1610s, agent noun from rectify.

Online Etymology Dictionary, © 2010 Douglas Harper
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rectifier in Science
rectifier
  (rěk'tə-fī'ər)   
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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Word Value for rectifier

14
15
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