life belt

noun
1.
a beltlike life preserver.
Origin
1855-60
Examples from the web for life belt
  • On suspension scaffolds each employee must be protected by an approved safety life belt attached to the lifeline.
  • Climbs and descends aerial ladder using life belt or safety equipment in order to conduct suppression or rescue operations.
  • His testimony as to the absence of a life belt is credible.
British Dictionary definitions for life belt

life belt

noun
1.
a ring filled with buoyant material or air, used to keep a person afloat when in danger of drowning