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space·walkor space walk (spās′:wôlk′)
A stint of extravehicular activity by an astronaut in space.
(Astronautics) the act or an instance of floating and manoeuvring in space, outside but attached by a lifeline to a spacecraft. Technical name: extravehicular activity
(Astronautics) (intr) to float and manoeuvre in space while outside but attached to a spacecraft
1. the act of performing a task or maneuvering in space outside a spacecraft.v.i.
2. to execute a spacewalk.
Past participle: spacewalked