noun
astronaut
AS-truh-nawt/ˈæstrənɔːt/
A person trained to travel and work in space.
The astronaut works outside the spacecraft while secured by a tether.
Etymology
A literal “star-sailor” imagines space travel as a voyage. The sailor image names someone who travels and works in space rather than at sea.
In context
microwaves by the stimulated emission of radiation we already used mazes in deep space communication and radio astronomy but there's a problem with something called noise let's imagine an intrepid astronaut on Mars
More examples
- She trained for years to become an astronaut.
- Two astronauts repaired the equipment outside the station.
- The class watched an astronaut describe life in space.
Forms
astronaut · astronauts
Similar words
- cosmonaut
- Traditionally associated with the Russian or Soviet space program.
- spacefarer
- A broader, less occupational term for a space traveler.