Definition of crash helmet
:a helmet that is worn (as by motorcyclists) as protection for the head in the event of an accident
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crash helmet
noun
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First Known Use of crash helmet
circa 1918
CRASH HELMET Defined for English Language Learners
crash helmet
noun
Definition of crash helmet for English Language Learners
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: a very strong, hard hat that is worn to protect your head when you are riding a bicycle, motorcycle, etc.
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