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  1. Big Bang
    IPA[biɡ ˈbaNG]
  2. noun

    • 1. the rapid expansion of matter from a state of extremely high density and temperature that according to current cosmological theories marked the origin of the universe.

  3. Variation

    • n.: noun: big bang, plural noun: big bangs

    • noun

      the rapid expansion of matter from a state of extremely high density and temperature which according to current cosmological theories marked the origin of the universe.

      (in the UK) the introduction in 1986 of major changes in trading on the Stock Exchange, principally involving widening of membership, relaxation of rules for brokers, and computerization.

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