Definition of personal flotation device in English:
personal flotation device
noun
North American
Personal flotation device, a buoyancy aid for individual use as a water safety measure or in emergencies, especially a wearable one such as a life jacket; abbreviated "PFD".
Origin
1970s; earliest use found in The Frederick News.
Definition of personal flotation device in US English:
personal flotation device
noun
North American
Personal flotation device, a buoyancy aid for individual use as a water safety measure or in emergencies, especially a wearable one such as a life jacket; abbreviated "PFD".