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  1. Big Bang

    • IPA[ˌbɪɡ ˈbaŋ]


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