'cosmonaut' definitions:

Definition of 'cosmonaut'

(from WordNet)
noun
A person trained to travel in a spacecraft; "the Russians called their astronauts cosmonauts" [syn: astronaut, spaceman, cosmonaut]

Definition of 'cosmonaut'

From: GCIDE
  • cosmonaut \cosmonaut\ n. [Russ. kosmonavt from kosmos universe.] an astronaut; -- a term used by the Soviets and Russians.
  • Syn: astronaut, spaceman. [PJC]