big bangn.

Brit.

/ˌbɪɡ ˈbaŋ/, U.S.

/ˌbɪɡ ˈbæŋ/

Forms: also with capital initials.

Origin: Formed within English, by compounding. Etymons: big adj., bang n.¹

Etymology: < big adj. + bang n.¹

1. Astronomy. In cosmological theory: the rapid expansion of the universe from the extremely dense and hot initial state which marked its origin (estimated to have been 13.7 billion years ago); a model of the origin and early development of the universe incorporating such expansion. Frequently attributive, esp. in big bang theory. In 1948 the steady state theory of cosmology was propounded by Thomas Gold, Hermann Bondi, and Fred Hoyle, and this gained support in the 1950s (cf. steady state n. 2b). Hoyle first coined the term ‘big bang’ in a scripted radio broadcast in March 1949. He repeated it in a 1950 broadcast, the text of which was published (see quot. 1950). Seeking to draw a contrast with the steady state theory, he used ‘big bang’ to describe theories based on the concept that the universe expanded from the explosion of a ‘primeval atom’ (proposed by G. Lemaître in 1927) a finite time ago. It subsequently became the generally accepted term for such theories.

ΘΚΠ

the world > physical sensation > hearing and noise > degree, kind, or quality of sound > sudden or violent sound > explosive sound > [noun] > large explosion

bikini1947

big bang1950

1949 F. Hoyle in Listener 7 Apr. 568/1 Earlier theories..were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past.]

1950 F. Hoyle in Listener 9 Mar. 420/2 One [idea] was that the Universe started its life a finite time ago in a single huge explosion... This big bang idea seemed to me to be unsatisfactory.

1959 Galveston (Texas) News 23 June 26/3 The so-called ‘big bang’ theory holds that the present chemical constitution of the universe was decided in half an hour five billion years ago.

1964 Listener 3 Sept. 340/2 The man who comes to astrophysics with a belief in after-life might be expected to have some thoughts about the ‘big-bang theory’.

1981 E. R. Harrison Cosmology xviii. 347/1 The universe is now bathed in the afterglow of the big bang.

1990 Sciences Jan.–Feb. 31/1 Unlike the universe envisioned in the big bang model, the plasma universe evolves without beginning and without end.

2006 New Scientist 11 Feb. 32/2 People have long sought alternatives to the classic big bang, which involves a singularity (otherwise known as a breakdown in the laws of physics) as you roll the clock back towards time zero.

a. figurative. A sudden, revolutionary, or comprehensive change; a momentous event.

ΚΠ

1957 J. Osborne Look Back in Anger iii. i. 84 If the big bang does come, and we all get killed off, it won't be in aid of the old-fashioned, grand design.

1968 Amer. Polit. Sci. Rev. June 168 One of the stigmata of the take-off to modernity is the rapid development of..complex institutional forms... The ‘big bang’ seems to come in the 1890-1910 period.

1990 Economist 22 Sept. 20/2 After starting bravely with its Big Bang in January, the government [of Poland] has failed to push privatisation through fast enough.

1991 N.Y. Times Mag. 17 Feb. 56/5 [He] describes negotiations as ‘a process, not a big-bang thing’.

2007 Atlantic Monthly May 88/2 The election followed what Israeli politicians called the ‘Big Bang’..Sharon's pullout from Gaza had left Likud irreparably divided.

b. Stock Market colloquial. A sudden and complex change to trading practices; spec. the deregulation of the London Stock Exchange on 27 October 1986.

ΘΚΠ

society > trade and finance > stocks and shares > [noun] > deregulation

big bang1983

society > trade and finance > stocks and shares > [adjective] > deregulation

big bang1983

1983 Financial Times 19 Sept. 16/8 It is argued that a ‘big bang’ approach, with all changes in Stock Exchange rules taking place on a single day.., would allow firms to make rational plans.

1984 Times 14 Feb. 19/7 The removal of the minimum commissions guaranteed to the 250-member firms of the [Stock] Exchange is now likely to happen in one go—by what is known as the ‘big bang’ approach.

1986 Sunday Express Mag. 26 Oct. 12/1 After the Big Bang tomorrow, the City will never be the same again... From tomorrow,..the distinction between brokers and jobbers disappears.

2006 Evening Gaz. (Nexis) 27 Oct. 20 Without big bang—the deregulation of the stock market 20 years ago today—London would not have transformed itself into the European financial capital it is now.

This is a new entry (OED Third Edition, December 2008; most recently modified version published online December 2021).

单词	big bang
释义	big bangn. Brit. /ˌbɪɡ ˈbaŋ/, U.S. /ˌbɪɡ ˈbæŋ/ Forms: also with capital initials. Origin: Formed within English, by compounding. Etymons: big adj., bang n.¹ Etymology: < big adj. + bang n.¹ 1. Astronomy. In cosmological theory: the rapid expansion of the universe from the extremely dense and hot initial state which marked its origin (estimated to have been 13.7 billion years ago); a model of the origin and early development of the universe incorporating such expansion. Frequently attributive, esp. in big bang theory. In 1948 the steady state theory of cosmology was propounded by Thomas Gold, Hermann Bondi, and Fred Hoyle, and this gained support in the 1950s (cf. steady state n. 2b). Hoyle first coined the term ‘big bang’ in a scripted radio broadcast in March 1949. He repeated it in a 1950 broadcast, the text of which was published (see quot. 1950). Seeking to draw a contrast with the steady state theory, he used ‘big bang’ to describe theories based on the concept that the universe expanded from the explosion of a ‘primeval atom’ (proposed by G. Lemaître in 1927) a finite time ago. It subsequently became the generally accepted term for such theories. ΘΚΠ the world > physical sensation > hearing and noise > degree, kind, or quality of sound > sudden or violent sound > explosive sound > [noun] > large explosion bikini1947 big bang1950 1949 F. Hoyle in Listener 7 Apr. 568/1 Earlier theories..were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past.] 1950 F. Hoyle in Listener 9 Mar. 420/2 One [idea] was that the Universe started its life a finite time ago in a single huge explosion... This big bang idea seemed to me to be unsatisfactory. 1959 Galveston (Texas) News 23 June 26/3 The so-called ‘big bang’ theory holds that the present chemical constitution of the universe was decided in half an hour five billion years ago. 1964 Listener 3 Sept. 340/2 The man who comes to astrophysics with a belief in after-life might be expected to have some thoughts about the ‘big-bang theory’. 1981 E. R. Harrison Cosmology xviii. 347/1 The universe is now bathed in the afterglow of the big bang. 1990 Sciences Jan.–Feb. 31/1 Unlike the universe envisioned in the big bang model, the plasma universe evolves without beginning and without end. 2006 New Scientist 11 Feb. 32/2 People have long sought alternatives to the classic big bang, which involves a singularity (otherwise known as a breakdown in the laws of physics) as you roll the clock back towards time zero. 2. a. figurative. A sudden, revolutionary, or comprehensive change; a momentous event. ΚΠ 1957 J. Osborne Look Back in Anger iii. i. 84 If the big bang does come, and we all get killed off, it won't be in aid of the old-fashioned, grand design. 1968 Amer. Polit. Sci. Rev. June 168 One of the stigmata of the take-off to modernity is the rapid development of..complex institutional forms... The ‘big bang’ seems to come in the 1890-1910 period. 1990 Economist 22 Sept. 20/2 After starting bravely with its Big Bang in January, the government [of Poland] has failed to push privatisation through fast enough. 1991 N.Y. Times Mag. 17 Feb. 56/5 [He] describes negotiations as ‘a process, not a big-bang thing’. 2007 Atlantic Monthly May 88/2 The election followed what Israeli politicians called the ‘Big Bang’..Sharon's pullout from Gaza had left Likud irreparably divided. b. Stock Market colloquial. A sudden and complex change to trading practices; spec. the deregulation of the London Stock Exchange on 27 October 1986. ΘΚΠ society > trade and finance > stocks and shares > [noun] > deregulation big bang1983 society > trade and finance > stocks and shares > [adjective] > deregulation big bang1983 1983 Financial Times 19 Sept. 16/8 It is argued that a ‘big bang’ approach, with all changes in Stock Exchange rules taking place on a single day.., would allow firms to make rational plans. 1984 Times 14 Feb. 19/7 The removal of the minimum commissions guaranteed to the 250-member firms of the [Stock] Exchange is now likely to happen in one go—by what is known as the ‘big bang’ approach. 1986 Sunday Express Mag. 26 Oct. 12/1 After the Big Bang tomorrow, the City will never be the same again... From tomorrow,..the distinction between brokers and jobbers disappears. 2006 Evening Gaz. (Nexis) 27 Oct. 20 Without big bang—the deregulation of the stock market 20 years ago today—London would not have transformed itself into the European financial capital it is now. This is a new entry (OED Third Edition, December 2008; most recently modified version published online December 2021). < n.1950
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