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Synonyms

coupler

American  
[kuhp-ler] / ˈkʌp lər /

noun

  1. a person or thing that couples or links together.

  2. Machinery. a rod or link transmitting force and motion between a rotating part and a rotating or oscillating part.

  3. Also called coupling.  Railroads. a device for joining pieces of rolling stock.

  4. a device in an organ or harpsichord for connecting keys, manuals, or a manual and pedals, so that they are played together when one is played.

  5. Electricity. a device for transferring electrical energy from one circuit to another, as a transformer that joins parts of a radio apparatus together by induction.

  6. (in color photography) a chemical that reacts with the developer to produce one of the colors in a print or transparency.

coupler British  
/ ˈkʌplə /

noun

  1. a link or rod transmitting power between two rotating mechanisms or a rotating part and a reciprocating part

  2. music a device on an organ or harpsichord connecting two keys, two manuals, etc, so that both may be played at once

  3. electronics a device, such as a transformer, used to couple two or more electrical circuits

  4. Also called (in eg Britain): coupling.  a device for connecting railway cars or trucks together

"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

Etymology

Origin of coupler

First recorded in 1545–55; couple + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Their novel architecture involves a circuit that has two fluxonium qubits on either end, with a tunable transmon coupler in the middle to join them together.

From Science Daily • Sep. 25, 2023

The coupler involved in the 2018 separation had a bolt that was the wrong size, Metro Chief Safety Officer Theresa Impastato said last year.

From Washington Post • Oct. 2, 2021

The next month at the Misterios station, a railway coupler fractured — a mechanism used for joining train cars.

From Seattle Times • May 4, 2021

There are accessories for high-capacity magazines, banned in California, including a Magpul-brand coupler that holds two 30-round clips of M16 bullets.

From Los Angeles Times • Aug. 7, 2019

We might lend him a coupler hundred bones at ten per cent., secured by a mortgage on the Maggie, if he's up agin it hard.

From Captain Scraggs or, The Green-Pea Pirates by Grant, Gordon

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.