Definition of pretensioner in English:

pretensioner

Syllabification: pre·ten·sion·er
Pronunciation: /prēˈtenCHənər
 
/

noun

  • A device designed to pull a seat belt tight in an accident.
    More example sentences
    • Additionally, there are dozens of safety/security features, such as the safety cage occupant compartment, dual-stage airbags, roof-rail airbag system and seatbelt pretensioners.
    • All Sentras are fitted with a tilt steering wheel, seat belt pretensioners, height-adjustable driver's seat and electric rear window defroster.
    • There are driver and passenger front air bags, ABS brakes, and front seat belt pretensioners with load limiters.

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