noun
- United States astronomer who discovered the planet Pluto (1906-1997. ).
- synonyms: Clyde Tombaugh, Clyde William Tombaugh
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). tombaugh. Retrieved September 23, 2026, from http://smartdefine.org/tombaugh/definitions/1235130 |
| Chicago | WordNet. 2010. "tombaugh" http://smartdefine.org/tombaugh/definitions/1235130 (accessed September 23, 2026). |
| Harvard | WordNet 2010, tombaugh, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/tombaugh/definitions/1235130>. |
| MLA | WordNet. "tombaugh" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/tombaugh/definitions/1235130> |