- a belt or strap in an automobile, airplane, etc., fastened around or sometimes diagonally across the midsection to keep the person safely secured, as during a sudden stop.
Compare lap belt.
Origin of seat belt
First recorded in 1945–50
Also called safety belt.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for seat belt
He was ousted as governor, he had seat-belt issues, now this.How Jon Corzine Blew It—Again
The Daily Beast Video
November 4, 2011
She checked to make sure he had fastened his seat-belt properly, and then started the engine.Baartock
- Also called: safety belt a belt or strap worn in a vehicle to restrain forward motion in the event of a collision
- a similar belt or strap worn in an aircraft at takeoff and landing and in rough weather