astronaut

as-tro-naut · noun

imported

Definitions

noun

  1. 1.

    A person who is trained to travel and work in space.

  2. 2.

    A member of a spacecraft crew.

Forms

plural: astronauts

Related words

See also: astronauts, cosmonaut, space
Synonyms: cosmonaut, space traveler, spaceman

Etymology

From Greek astron ("star") + nautes ("sailor"). The term was coined in the 1920s but became widely used with the American space program in the 1960s.