noun
(cosmology) the cosmic explosion that is hypothesized to have marked the origin of the universe
• Hypernyms: ↑explosion, ↑detonation, ↑blowup
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noun1. sometimes capitalized both Bs : the cosmic explosion that marked the beginning of the universe according to the big bang theory — compare big crunch herein
2. often capitalized both Bs : a development having a quick or strong impact
the big bang of Cubism that changed the course of modern art — Grace H. Glueck
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Big Bang
1. The hypothetical explosion of a small dense mass which most scientists believe (the Big Bang theory) to have been the origin of the universe
2. The changes in the system and rules of the British Stock Exchange instituted on 27 October 1986, in effect deregulating many of its practices and abolishing the distinction between jobbers and brokers
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Main Entry: ↑bang
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Main Entry: ↑big
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Big Bang,
1. a) = big bang theory. b) the cosmic explosion described in the big bang theory.
2. Also, big bang, Figurative. a) a sudden and dramatic change in policy or direction: »
Inheritors of the Soviet Union unleash their own Big Bang of price liberalisation, currency convertibility, and fiscal reforms (Manchester Guardian Weekly).
b) a spontaneous outburst, as of an idea, theory, or the like: »All this was a vision…that grew ever wider as he spoke, like a kind of big bang in his head (New Yorker).
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(also Big Bang) n. Astronomy the explosion of dense matter that, according to current cosmological theories, marked the origin of the universe
Encyclopedic information:
In the beginning, a fireball of radiation at extremely high temperature and density, but occupying a tiny volume, is believed to have formed. This expanded and cooled, extremely fast at first, but more slowly as subatomic particles condensed into matter that later accumulated to form galaxies and stars. The galaxies are currently still retreating from one another. What was left of the original radiation continued to cool and has been detected as a uniform background of weak microwave radiation
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noun
the big bang
: a huge explosion that might have happened when the universe began
a few billion years after the big bang
◇ The scientific theory that the universe began with a huge explosion is called the big bang theory.
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the single large explosion that some scientists suggest created the universe
Useful english dictionary. 2012.