air-jacket
Definition
Noun: - A life-saving device consisting of an inflatable jacket worn to keep a person afloat in water; a type of life jacket or life preserver that uses air as its buoyant medium.
Usage Examples
- (A life jacket worn to prevent drowning.)
- (A buoyancy aid that uses air for flotation.)
Advanced Usage
"to wear an air-jacket": to use an air-jacket for safety while near or on water.
- All passengers were required to wear an air-jacket during the boat tour. (Everyone had to put on a life jacket.)
"air-jacket inflation": the process by which the jacket fills with air, either manually or automatically.
- The air-jacket inflation mechanism activated when the sensor detected submersion. (The jacket filled with air as designed.)
Variants and Related Words
Air-jacketed (adj): equipped with an air-jacket.
- The air-jacketed raft provided extra safety for the rescue team. (The raft had built-in buoyancy aids.)
Jacket (n): a short coat; also used in compounds like "life jacket" or "air-jacket."
- He wore a heavy jacket to keep warm. (A coat for warmth, not specifically a flotation device.)
Synonyms
- Life jacket: a flotation device worn like a vest.
- Life preserver: a buoyant device to prevent drowning.
- Buoyancy aid: a device that helps a person stay afloat.
Related Idioms
- "Keep your head above water": to survive financially or emotionally, not directly related to air-jackets but metaphorically linked to staying afloat.
- With two jobs, she could barely keep her head above water. (She struggled to manage her finances.)
Phrasal Verbs
- Jacket up: (informal) to put on a jacket or life jacket.
- We need to jacket up before the storm hits. (Put on protective gear, including an air-jacket.)
Additional Notes
- The term "air-jacket" is less common in modern usage than "life jacket" or "life vest," but it specifically emphasizes the use of air as the flotation medium, distinguishing it from foam-filled or other types of flotation devices.