cosmic string


Definition of cosmic string

: any of a class of hypothetical supermassive astronomical objects that are extremely thin but are millions of light years long and that are postulated to have formed very early in the history of the universe

Examples of cosmic string in a Sentence

Recent Examples on the Web That likely would not create a stable wormhole, per se, as the cosmic strings would eventually vibrate themselves into nothingness. David Grossman, Popular Mechanics, 27 Aug. 2019 Gravitational waves could help with the search for cosmic strings—putative enormous, superdense filamentary structures in space. The Economist, 22 Aug. 2019 And some macroscopic signatures of the theory that might have been seen, such as cosmic strings and supersymmetry, have not shown up. Quanta Magazine, 18 Dec. 2017 Wormholes, black holes, cosmic strings, and circulating light beams have all been suggested as potential solutions for time-traveling to the past. Matt Blitz, Popular Mechanics, 28 May 2018

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

First Known Use of cosmic string

1983, in the meaning defined above

Learn More About cosmic string

Time Traveler for cosmic string

Time Traveler

The first known use of cosmic string was in 1983

See more words from the same year

Dictionary Entries Near cosmic string

cosmic-ray telescope

cosmic string

cosmic year

See More Nearby Entries 

Statistics for cosmic string

Cite this Entry

“Cosmic string.” Dictionary, Merriam-Webster, Accessed 27 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on cosmic string Encyclopedia article about cosmic string


Test Your Vocabulary

Name That Color

  • a light greenish blue color
  • Name that color:
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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