| NOUN | cognition | big-bang theory, big bang theory | (cosmology) the theory that the universe originated sometime between 10 billion and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature |
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| Meaning | (cosmology) the theory that the universe originated sometime between 10 billion and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature. | |
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| Synonym | big bang theory | |
| Category | cosmology, cosmogony, cosmogeny | The branch of astrophysics that studies the origin and evolution and structure of the universe |
| Broader | scientific theory | A theory that explains scientific observations |
| Catalan | teoria del Big Bang | |
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