life-saving

US /ˈlaɪfˌseɪvɪŋ/
UK /ˈlaɪfˌseɪvɪŋ/
"life-saving" picture
1.

used to describe something that saves or is intended to save someone's life

:
The doctor performed a life-saving operation.
Wearing a helmet can be a life-saving measure for cyclists.