Adjective
extra-vehicular (not comparable)
Alternative spelling of extravehicular
However, the self-timer was misplaced during the extra-vehicular activity (EVA) and the plan was never executed. Source: Internet
The crew conducted further repairs via two spacewalks (extra-vehicular activity, or EVA). Source: Internet
In her last mission on Discovery in 1999, she performed an extra-vehicular activity for about eight hours. Source: Internet