(n.) According to the French method of numeration (which method is followed also in the United States) the number expressed by a unit with twenty-seven ciphers annexed. According to the English method, the number expressed by a unit with forty-eight ciphers annexed. See Numeration.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). octillion. Retrieved September 29, 2026, from http://smartdefine.org/octillion/definitions/2038293 |
| Chicago | Webster's. 2011. "octillion" http://smartdefine.org/octillion/definitions/2038293 (accessed September 29, 2026). |
| Harvard | Webster's 2011, octillion, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/octillion/definitions/2038293>. |
| MLA | Webster's. "octillion" 27 May 2011. Web. 29 September 2026. <http://smartdefine.org/octillion/definitions/2038293> |