astronaut (ˈæstrəˌnɔːt) ![]() | |
| —n | |
| See also cosmonaut a person trained for travelling in space | |
| [C20: from | |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a gadget; dingus; thingumbob. |
A crew member of a space mission launched by the United States. (See Apollo program and Mercury program.)