big bang

noun

: the cosmic explosion that marked the beginning of the universe according to the big bang theory
In 1965 Arno A. Penzias and Robert W. Wilson of the Bell Telephone Laboratories discovered that the space of the universe is bathed with a diffuse radiation that is assumed to persist following the "big bang" expansion of the universe from an original fireball.V. L. Ginzburg
compare big crunch, big rip

Examples of big bang in a Sentence

Recent Examples on the Web Lightweight Packable Backpack wins big points for its durability and organization, giving travelers a big bang for their buck. Katherine Alex Beaven, Travel + Leisure, 27 Mar. 2024 In a year already jam-packed with marquee releases from Ariana Grande, Beyoncé and Taylor Swift, Boone started off his year with a somewhat whimper, followed by a big bang. Steven J. Horowitz, Variety, 6 Mar. 2024 See all Example Sentences for big bang 

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Word History

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of big bang was in 1949

Dictionary Entries Near big bang

Cite this Entry

“Big bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/big%20bang. Accessed 29 May. 2024.

Kids Definition

big bang

noun
: the explosion that caused the beginning of the universe according to the big bang theory
Last Updated: - Updated example sentences
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