| 单词 | big bang theory |
| 释义 | big bang theorysingular noun In astronomy, the big bang theory is a theory that suggests that the universe was created as a result of an extremely large explosion. big bang theory in British English (bɪɡ bæŋ ˈθɪərɪ) noun physics the theory that the origin of the universe was in a cataclysmic explosion in which all the matter of the universe, packed into a small superdense mass, was hurled in all directions big-bang theory in British Englishnoun a cosmological theory postulating that approximately 12 billion years ago all the matter of the universe, packed into a small superdense mass, was hurled inall directions by a cataclysmic explosion. As the fragments slowed down, the galaxies and stars evolved but the universe is still expanding Compare steady-state theory big-bang theory in American English (ˈbɪgˈbæŋ) a theory of cosmology holding that the expansion of the universe began with a gigantic explosion (big bang) between 12 and 20 billion years ago see also steady-state theory |
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