astronaut

The definition of an astronaut is a person who either travels into space or who is trained to travel into space.

(noun)

An example of an astronaut is Neil Armstrong, the man who walked on the moon.

See astronaut in Webster's New World College Dictionary

noun

a person trained to make rocket flights in outer space

Origin: < Fr astronaute: see astro- & aeronaut

See astronaut in American Heritage Dictionary 4

noun

A person trained to pilot, navigate, or otherwise participate as a crew member of a spacecraft.

Origin:

Origin: astro-

Origin: + Greek nautēs, sailor (from naus, ship; see nāu- in Indo-European roots)

Learn more about astronaut

astronaut synonyms

astronaut Culture

astronaut in a sentence

astronaut images

link/cite print suggestion box

More from YD