cou·​pling | \ ˈkə-pliŋ (usual for sense 2) How to pronounce coupling (audio) , -pə-liŋ\

Definition of coupling

1 : the act of bringing or coming together : pairing specifically : sexual union
2 : a device that serves to connect the ends of adjacent parts or objects
3 : the joining of or the part of the body that joins the hindquarters to the forequarters of a quadruped
4 : a means of electric connection of two electric circuits by having a part common to both

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Examples of coupling in a Sentence

the couplings between railroad cars a coupling of literature and science

Recent Examples on the Web

Artists as gardeners have been a common coupling throughout history. Kitty Leshay,, "Visitors Flock To Art And Garden Tour," 14 June 2019 There is no other proof of their coupling aside from a few small interactions of social media, but those alone are pretty telling. Carolyn Twersky, Seventeen, "Who is Romeo Beckham? Everything You Need to Know About Millie Bobby Brown's Possible New Boyfriend," 19 Mar. 2019 Optical quantum walks are lovely, but each device is fixed: the length of fiber and the coupling between different fibers cannot be readily adjusted. Chris Lee, Ars Technica, "Wandering Bose-Einstein condensate may lead to scalable quantum computer," 29 Aug. 2018 Ordinary meters can indicate a voltage when none is present due to a phenomenon known as capacitive coupling. Roy Berendsohn, Popular Mechanics, "Best New Tool: Klein Tools' Do-It-All Electrical Clamp Meter," 8 Jan. 2016 Lee has found a way to make that metaphor quantitative by measuring the couplings found in the voting record. Jennifer Ouellette, Ars Technica, "Study: Magnetism model reveals long-term non-partisan nature of SCOTUS," 12 Oct. 2018 Considering the media attention the coupling attracted, SNL couldn't not address it. Kayleigh Roberts, Marie Claire, "A Guide to All the Times Pete Davidson Mentioned Ariana Grande During the 'SNL' Premiere," 30 Sep. 2018 The plastic pressure reducer or pressure regulator inside the hose coupling protects the hose from splitting under high water pressure. The Editors, Good Housekeeping, "How to Install a Drip Irrigation System in Your Garden," 17 July 2018 Rumors of a coupling between British model Cara Delevingne and Pretty Little Liars star, Ashley Benson have been swarming around for a few months now. Carolyn Twersky, Seventeen, "Everything We Know About Ashley Benson and Cara Delevingne's Relationship So Far," 14 Aug. 2018

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

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First Known Use of coupling

14th century, in the meaning defined at sense 1

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Statistics for coupling

Last Updated

30 Jun 2019

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The first known use of coupling was in the 14th century

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More Definitions for coupling



English Language Learners Definition of coupling

: a device that connects two parts or things
formal : the act of having sex
: the act of combining two things


cou·​pling | \ ˈkə-pling How to pronounce coupling (audio) \

Kids Definition of coupling

1 : the act of bringing or coming together the coupling of the freight cars
2 : something that connects two parts or things a pipe coupling


cou·​pling | \ ˈkəp-liŋ, -ə-liŋ How to pronounce coupling (audio) \

Medical Definition of coupling

1 : the joint together with its supporting structures between the last lumbar vertebra and the sacrum that joins the hindquarters of a quadruped to the trunk broadly : the part of the body or the conformation and proportionate length of the part of the body that joins the hindquarters to the forequarters
2 : the tendency of linked traits to be inherited together in offspring of a double heterozygote when both dominant genes occur on one chromosome and both recessive genes occur on the homologous chromosome — compare repulsion
3 : bigeminy

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More from Merriam-Webster on coupling

Thesaurus: All synonyms and antonyms for coupling

Spanish Central: Translation of coupling

Nglish: Translation of coupling for Spanish Speakers

Britannica English: Translation of coupling for Arabic Speakers

Comments on coupling

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


to form ideas or theories about something

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