roll bar

noun

Definition of roll bar

:an overhead metal bar on an automobile that is designed to protect the occupant in case of a rollover

First Known Use of roll bar

1948


ROLL BAR Defined for English Language Learners

roll bar

noun

Definition of roll bar for English Language Learners

  • : a metal bar in the roof of a car or other vehicle that is designed to protect riders if the vehicle rolls over


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