(n.) A genus of American jurassic dinosaurs. A length of sixty feet is believed to have been attained by these reptiles.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). brontosaurus. Retrieved September 25, 2026, from http://smartdefine.org/brontosaurus/definitions/1982710 |
| Chicago | Webster's. 2011. "brontosaurus" http://smartdefine.org/brontosaurus/definitions/1982710 (accessed September 25, 2026). |
| Harvard | Webster's 2011, brontosaurus, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/brontosaurus/definitions/1982710>. |
| MLA | Webster's. "brontosaurus" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/brontosaurus/definitions/1982710> |