spacewalker

plural spacewalkers

1. An astronaut engaging in a space walk or other activity outside the spacecraft.

   NASA has spacewalkers periodically look at their gloves, since the discovery of a cut in a glove used by an astronaut during the last shuttle mission.

   2007 August 16, Kenneth Chang, “Shuttle Crew Is Told to Study for Repairs, as NASA Wavers”, in The New York Times

   1 more example

   Mr. Clooney, as a veteran spacewalker, with his resonant voice and folksy yarns, seems to be channeling every imperturbable astronaut you ever heard speaking from on high.

   2013 September 30, Dennis Overbye, “Astronaut and a Writer at the Movies”, in The New York Times