(n.) According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power or the number represented by a unit with eighteen ciphers annexed. See the Note under Numeration.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). trillion. Retrieved September 23, 2026, from http://smartdefine.org/trillion/definitions/2074710 |
| Chicago | Webster's. 2011. "trillion" http://smartdefine.org/trillion/definitions/2074710 (accessed September 23, 2026). |
| Harvard | Webster's 2011, trillion, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/trillion/definitions/2074710>. |
| MLA | Webster's. "trillion" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/trillion/definitions/2074710> |