WordReference Random House Unabridged Dictionary of American English © 2017
safety belt′, 
  1. AutomotiveSee  seat belt. 
  2. Buildinga belt or strap worn as a safety precaution by a person working at a great height:The safety belt worn by a window washer is usually secured to each side of the window frame.
  3. See  life belt. 
  • 1855–60

Collins Concise English Dictionary © HarperCollins Publishers::

safety belt n
  1. another name for seat belt
  2. a belt or strap worn by a person working at a great height and attached to a fixed object to prevent him from falling

'safety belt' also found in these entries:

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