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Big Bang theory

Big Bang theory

4 4.1
An idea that the universe began when a hot, very dense point expanded quickly
  • noun
  • /bɪg bæŋ ˈθɪəri/
  • Specialized
translation icon : teoría del Big Bang
  • According to the Big Bang theory, the universe originated from a dense and hot state about 13.8 billion years ago.
  • Big Bang theory predicts
  • support the Big Bang theory
  • Big Bang theory of the universe

What do you think The Big Bang theory means?

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Examples

  • But the big bang theory isn't supposed to explain everything.

    Blog text (13)
  • The father of the Big Bang theory, Monseigneur Lemaitre, was the first man to propose the concept of an expanding universe.

    Blog text (26)
  • What do you think The Big Bang theory means?

  • Welcome to the Big Bang theory, my friend.

  • It's the Big Bang theory!

    Academic text (2018)
  • Maybe just another way to explain the Big Bang theory.

    Blog text (13)
  • I asked her what makes sense for her in the Big Bang theory, and she says that the planets should start at some point.

    Academic text (2018)
  • After the end of inflation, the universe would have continued expanding at a rate consistent with the original Big Bang theory.

    Academic text (2002)
  • Ironically, one of the originators of the "Big Bang" theory was a Catholic priest, Fr. Georges Lemaitre.

    Academic text (2013)
  • Many astronomers agree that the Big Bang theory provides the best explanation for the observed expansion of the universe.

Synonyms

big-bang theory
vsBig Bang theory
  • Specialized
3.7

A scientific idea that the universe began in a huge explosion from one tiny hot point and is still expanding

is the same idea but written as two separate words

Surface Forms

Morphology

big + bang + theory

The phrase is compositionally a 'theory' about a 'big bang', so a learner who knows 'big' and 'bang' will likely infer it refers to a theory about a large explosive origin — a partial, metaphorical match. However, the scientific sense (rapid expansion, origin of space and time) goes beyond the literal meanings of the constituents, so full understanding requires prior exposure or background knowledge; cross-linguistic parallels help recognizability but not complete predictability.

Etymology

Big Bang theory came from a scientist's radio talk where he used the words Big and Bang to make people picture a sudden, loud explosion. That's why the name helps you remember that the theory says the universe began with a quick, powerful expansion from a very hot, very dense state.