Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Old French
Origin: helme 'helmet'

helmet

 noun
     
helmet
Related topics: Transport
hel‧met [countable]
TT a strong hard hat that soldiers, motorcycle riders, the police etc wear to protect their heads
➔ crash helmet, pith helmet
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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