trip·​let | \ ˈtri-plət How to pronounce triplet (audio) \

Definition of triplet

1 : one of three offspring produced in the same pregnancy
2a : a combination, set, or group of three
b : a group of three elementary particles (such as positive, negative, and neutral pions) with different charge states but otherwise similar properties
c : an atom or molecule with an even number of electrons that have a net magnetic moment
d : codon
3 : a group of three musical notes or tones performed in the time of two of the same value
4 : a unit of three lines of verse

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Examples of triplet in a Sentence

the theater piece is actually a triplet of comedy sketches, all of them having romantic love as their theme
Recent Examples on the Web Such a shape-shifting track could easily teeter into messy territory, but the soloist makes the track both accessible and exciting with his sunny rap style and masterful triplet expertise. Billboard Staff, Billboard, "The 20 Best K-Pop Songs of 2020: Staff List," 23 Dec. 2020 Walsh, who is a triplet and lives with his brothers, had a fever for two days and isolated himself in his room. Morgan Krakow, Anchorage Daily News, "‘More insidious than people realize:’ Thousands of younger Alaskans got sick with COVID-19. And they continue to drive up case counts.," 11 Oct. 2020 This triplet space is therefore infinite, unlike the computation for the sum of squares. Jean-paul Delahaye, Scientific American, "For Math Fans: A Hitchhiker’s Guide to the Number 42," 21 Sep. 2020 Derek Schultz's irrational fear of pelicans, boasting about being a miracle triplet and his obsession with My Little Pony dolls have been on an 8-month hiatus. Dana Hunsinger Benbow, The Indianapolis Star, "'Query & Schultz' sports talk show is back with all its oddities...but on TV," 9 Sep. 2020 But according to Sprague, local residents will have little say in the new triplet associated with the District. Emily Davies, Washington Post, "Numbers are running out for the 202 area code in D.C.," 1 Sep. 2020 His triplet brother Dan Sichterman is in the clear for now at Iowa State of the Big 12, but Matt and the Cornhuskers coach Scott Frost are stewing. Scott Springer, The Enquirer, "Several locals affected by Big Ten stopping fall football," 11 Aug. 2020 The Swedes are a group of triplet brothers that work for The Commission. Tamara Fuentes, Seventeen, "Who are The Swedes from "The Umbrella Academy" Season 2?," 2 Aug. 2020 The old song of white-throated sparrows ends in a a triplet. Corryn Wetzel, National Geographic, "Sparrows are singing a new song, in a rapid, unprecedented shift," 2 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triplet.' 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 triplet

1656, in the meaning defined at sense 4

History and Etymology for triplet

triple entry 2

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Time Traveler for triplet

Time Traveler

The first known use of triplet was in 1656

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Statistics for triplet

Last Updated

12 Jan 2021

Cite this Entry

“Triplet.” Dictionary, Merriam-Webster, Accessed 22 Jan. 2021.

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More Definitions for triplet


How to pronounce triplet (audio)

English Language Learners Definition of triplet

: one of three babies that are born at the same time to the same mother
: a combination, set, or group of three things


trip·​let | \ ˈtri-plət How to pronounce triplet (audio) \

Kids Definition of triplet

1 : a combination, set, or group of three
2 : one of three offspring born at one birth


trip·​let | \ ˈtrip-lət How to pronounce triplet (audio) \

Medical Definition of triplet

1a : a combination, set, or group of three
b : an atom or molecule with an even number of electrons that have a net magnetic moment
c : codon
2a : one of three children or offspring born at one birth
b triplets plural : a group of three offspring born at one birth
3 : a combination of three lenses

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