space·walk or space walk 
(spās:wôlk′)
(spās:wôlk′)n.
A stint of extravehicular activity by an astronaut in space.
spacewalk′ v.
spacewalk′er n.
- precipitately
- precipitateness
- precipitation
- precipitative
- precipitator
- precipitin
- precipitinogen
- precipitous
- precipitously
- precipitousness
- precise
- precisely
- preciseness
- precisian
- precisianism
- precision
- precisionism
- precisionist
- preclinical
- preclude
- preclusion
- preclusive
- preclusively
- precocial
- precocious