noun
- Cosmology) the cosmic explosion that is hypothesized to have marked the origin of the universe. (.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). big bang. Retrieved September 21, 2026, from http://smartdefine.org/big_bang/definitions/1219814 |
| Chicago | WordNet. 2010. "big bang" http://smartdefine.org/big_bang/definitions/1219814 (accessed September 21, 2026). |
| Harvard | WordNet 2010, big bang, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/big_bang/definitions/1219814>. |
| MLA | WordNet. "big bang" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/big_bang/definitions/1219814> |