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Definition of "big bang" [big bang]

  • The cosmic explosion that marked the origin of the universe according to the big bang theory. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "big bang" in a sentence
  • "The big bang produced, from nothing, a universe composed of photons, energy-packed radiations, unimaginably hot and compressed beyond description, a soup of energy, nearly homogeneous throughout."
  • "It takes a big bang producing a universe guided by laws of nature somehow tuned to lead energy into rocks and water on a user-friendly planet that can take those rocks and water and change them into a marvelously complex, data-crunching, algorithmic, sound-, sight-, touch-, and smell-sensitive wonder capable of processing thousands of inputs in parallel with a cycling time of thirty thousandths of a second."
  • "Sir John Maddox, for example, the avidly secular former editor of the journal Nature, one of the two most respected peer-reviewed scientific journals, opined that the big bang is philosophically unacceptable. . ."