noun
- Astronaut who made the first United States' suborbital rocket-powered flight in 1961 (1923-1998. ).
- synonyms: Shepard, Alan Bartlett Shepard Jr.
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Alan Shepard. Retrieved September 21, 2026, from http://smartdefine.org/alan_shepard/definitions/1255424 |
| Chicago | WordNet. 2010. "Alan Shepard" http://smartdefine.org/alan_shepard/definitions/1255424 (accessed September 21, 2026). |
| Harvard | WordNet 2010, Alan Shepard, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/alan_shepard/definitions/1255424>. |
| MLA | WordNet. "Alan Shepard" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/alan_shepard/definitions/1255424> |