Definition of passive restraint in English:

passive restraint

Syllabification: pas·sive res·traint

Entry from US English dictionary

noun

A car safety device that is activated by the force of a collision or other sudden stop and that aims to prevent injury to a passenger.

Definition of passive restraint in:

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Word of the day flippant
Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude