The word "evac" is short for evacuate, which means to leave a place or area quickly to ensure safety, usually due to an emergency or dangerous situation. Full definition
«Snake crawled, avoiding searchlights, killed guard, rode jeep, called in helicopter for evac,» said another. (fraghero.com)
On board the medical evac ship Corelean she struggles with divided loyalties and a growing attraction to her master healer, Lana. (rjeliason.com)
It requires different medical coverage, less gear coverage (you don't hike with expensive laptops), and possibly extreme coverage for mountain climbing and medical evac. (blog.tortugabackpacks.com)