noun
- A former United States executive agency that was responsible for developing atomic bombs during World War II.
- Code name for the secret United States project set up in 1942 to develop atomic bombs for use in World War II. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). manhattan project. Retrieved September 20, 2026, from http://smartdefine.org/manhattan_project/definitions/1192229 |
| Chicago | WordNet. 2010. "manhattan project" http://smartdefine.org/manhattan_project/definitions/1192229 (accessed September 20, 2026). |
| Harvard | WordNet 2010, manhattan project, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/manhattan_project/definitions/1192229>. |
| MLA | WordNet. "manhattan project" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/manhattan_project/definitions/1192229> |