supersymmetry

noun

su·​per·​sym·​me·​try ˌsü-pər-ˈsi-mə-trē How to pronounce supersymmetry (audio)
: the correspondence between fermions and bosons of identical mass that is postulated to have existed during the opening moments of the big bang and that relates gravity to the other forces of nature
supersymmetric
ˌsü-pər-sə-ˈme-trik How to pronounce supersymmetry (audio)
adjective

Examples of supersymmetry in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One of the leading theories beyond the Standard Model is known as supersymmetry. — Yuen Yiu, Discover Magazine, 15 Oct. 2019 In fact, a whole additional set of force and matter particles emerges from string equations involving a mathematical property called supersymmetry. — Tom Siegfried, JSTOR Daily, 19 Dec. 2024 Eighteen years later, supersymmetry remains in the theoretical realm. — IEEE Spectrum, 3 Feb. 2026 The introduction of supersymmetry also solved the nasty problem of tachyons by replacing those troublesome particles with supersymmetric partners, which was a nice flourish. — Paul Sutter, Ars Technica, 27 Jan. 2023 See All Example Sentences for supersymmetry

Word History

First Known Use

1974, in the meaning defined above

Time Traveler
The first known use of supersymmetry was in 1974

Rhymes for supersymmetry

See All Rhymes for supersymmetry

Browse Nearby Words

supersweet
supersymmetry
supersystem
See all Nearby Words

Cite this Entry

“Supersymmetry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supersymmetry. Accessed 7 Jul. 2026.

Copy Citation

More from Merriam-Webster on supersymmetry

Britannica.com: Encyclopedia article about supersymmetry

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

'A' or 'an'? What about before 'h'? An Indefinite Article Guide

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
hangman letters and game
Hangman Lightning Round Figure out which word fits in the blanks.
See All