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commutator

Upper-Intermediate (B2)

IPA: /kəˈmjuːteɪtə/

KK: /kəˈmjuːteɪtər/

noun
Definition

A device made of metal bars that helps produce a steady flow of electricity in motors and generators by allowing current to flow in one direction or reversing it.


Example

The engineer explained how the commutator works in the electric motor to ensure it runs smoothly.


Conversation
Sloth A
Have you heard about how a commutator works in motors?
Sloth B
Yeah, I think it helps keep the current flowing in one direction, right?
Sloth A
Exactly! It's fascinating how it all fits together in the machine.
Sloth B
I know, right? It's like a little engineering marvel.

Synonyms & Antonyms
Synonyms
rotor
switch
connector
Antonyms
disconnector
isolator
separator
Root Explanation

Commutator → It is formed from "com-" (meaning together) and "mutare" (meaning to change). The word refers to a device that changes or alternates the direction of current in an electrical circuit, thus working together to facilitate this change.

Memory Tip

Think of 'together' ('com-') and 'change' ('mutare') to remember that a commutator is a device that changes the direction of current.

Visually Confused Words
confutator
compotator
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