life buoy

Noun
  1. A life preserver in the form of a ring of buoyant material (synset 103668045)
    is a type of: flotation device, life preserver, preserver - rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning
    subtypes: breeches buoy - a life buoy in the form of a ring with short breeches for support; used to transfer people from a ship
    same as: life belt, life ring, lifesaver

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