crash helmet
noun
1.
a helmet for protecting the head in the event of an accident, worn by motorcyclists, automobile racers, etc.
Origin
1915-20
Examples from the web for
crash helmet
The driver wears a race fire suit,
crash helmet
, and neck brace.
The decedent was not wearing a
crash helmet
or protective eyewear.
Children should always wear a
crash helmet
when riding bikes.
British Dictionary definitions for
crash helmet
crash helmet
noun
1.
a padded helmet worn for motorcycling, flying, bobsleighing, etc, to protect the head in a crash