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big-bang theory Definition

big·-bang· theory (big′baŋ′)

noun

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

Browse dictionary entries near big-bang theory

  1. ‹ Big Bang
  2. ‹ big band
  3. ‹ Big Apple
  4. ‹ big
  5. ‹ bifurcation
  6. ‹ bifurcate
  7. ‹ bifteck
  8. ‹ Bifrost
  9. ‹ biform
  10. ‹ bifoliolate
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