rec·​ti·​fi·​er | \ ˈrek-tə-ˌfī(-ə)r How to pronounce rectifier (audio) \

Definition of rectifier

: one that rectifies specifically : a device for converting alternating current into direct current

Keep scrolling for more

Examples of rectifier in a Sentence

a tropical vacation is a surefire rectifier of the midwinter blues

Recent Examples on the Web

Power Transformer: Converts the 120 volts of power from the wall socket to a higher AC voltage and sends it to the rectifier tubes. Kevin Dupzyk, Popular Mechanics, "What a Fender Amp Looks Like When You Tear It Apart," 24 Mar. 2015 But the Hero, unlike past rectifiers, is packed with sensors to remotely measure and wirelessly report that the pipe is still connected, and resisting rust. Joseph N. Distefano,, "Hints of Philly's robotic future: Drones and data dashboards speed deliveries. Will it cut jobs?," 19 Apr. 2018 The electricity flows through the pipeline itself, with the rectifier on one end of a pipeline segment and a buried bed of anodes on the other. Bobby Magill, Popular Mechanics, "How Will the Keystone XL Pipeline Be Built?," 8 Apr. 2013 Cathodic protection uses a device called a rectifier—a transformer which is connected to nearby power lines and converts alternating current to direct current. Bobby Magill, Popular Mechanics, "How Will the Keystone XL Pipeline Be Built?," 8 Apr. 2013 This is then converted into direct current by a rectifier, and is used to top up the vehicle’s battery. The Economist, "Electric carsIt is now practical to refuel electric vehicles through thin air," 28 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rectifier.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of rectifier

1607, in the meaning defined above

Keep scrolling for more

Learn More about rectifier

Statistics for rectifier

Look-up Popularity

Time Traveler for rectifier

The first known use of rectifier was in 1607

See more words from the same year

More from Merriam-Webster on rectifier

Rhyming Dictionary: Words that rhyme with rectifier

Thesaurus: All synonyms and antonyms for rectifier Encyclopedia article about rectifier

Comments on rectifier

What made you want to look up rectifier? Please tell us where you read or heard it (including the quote, if possible).


miscellaneous remnants or debris

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!