noun
- One part in a quadrillion equal parts.
- synonyms: one-quadrillionth
adjective
- The ordinal number of one quadrillion in counting order. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). quadrillionth. Retrieved September 21, 2026, from http://smartdefine.org/quadrillionth/definitions/1181759 |
| Chicago | WordNet. 2010. "quadrillionth" http://smartdefine.org/quadrillionth/definitions/1181759 (accessed September 21, 2026). |
| Harvard | WordNet 2010, quadrillionth, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/quadrillionth/definitions/1181759>. |
| MLA | WordNet. "quadrillionth" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/quadrillionth/definitions/1181759> |