noun
- A helmet worn by astronauts while in outer space. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). space helmet. Retrieved September 24, 2026, from http://smartdefine.org/space_helmet/definitions/1208233 |
| Chicago | WordNet. 2010. "space helmet" http://smartdefine.org/space_helmet/definitions/1208233 (accessed September 24, 2026). |
| Harvard | WordNet 2010, space helmet, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/space_helmet/definitions/1208233>. |
| MLA | WordNet. "space helmet" 23 October 2010. Web. 24 September 2026. <http://smartdefine.org/space_helmet/definitions/1208233> |