1. designed to save or preserve life
2. extremely helpful or beneficial
Usage: informal

1. the skill or practice of rescuing people from drowning

Examples

• The lifesaving equipment on the boat included life jackets and flares.
• She took a lifesaving course at the community center.
• The new medication proved to be lifesaving for cancer patients.
• His quick thinking was absolutely lifesaving in that emergency.
• The lifeguard’s lifesaving skills prevented a tragedy at the beach.
• Lifesaving techniques require regular practice and certification.
• The doctor’s lifesaving surgery lasted eight hours.