seat belt

noun

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.

Also, seatbelt.

Also called safety belt.

Compare lap belt.

Origin

1945-50

Examples from the web for seat belt

But when the dogs get into cars, there's not a seat belt in sight.
She undid her seat belt, crawled over her seat, and stretched out to reach it.
The pilot only ever turns the fasten seat belt sign off to prevent a mutiny.
There are times when wearing a seat belt will get you killed.
The reporter conceded the point, unfastened his seat belt, and jumped out to join the others on the sidelines.
Especially since even older kids positively swim in their seats, seat belt or not.

British Dictionary definitions for seat belt

seat belt

noun

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