Definitions of helmet

n a protective headgear made of hard material to resist blows

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batting helmet
a helmet worn by the batter in baseball
crash helmet
a padded helmet worn by people riding bicycles or motorcycles; protects the head in case of accidents
football helmet
a padded helmet with a face mask to protect the head of football players
hard hat, safety hat, tin hat
a lightweight protective helmet (plastic or metal) worn by construction workers
a protective helmet for the head
space helmet
a helmet worn by astronauts while in outer space
skid lid
a crash helmet
Type of:
headdress, headgear
clothing for the head

n armor plate that protects the head

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a medieval helmet with a visor and a neck guard
a medieval steel helmet
(15-16th century) any armor for the head; usually ornate without a visor
a large medieval helmet supported on the shoulders
cabasset, morion
a metal helmet worn by common soldiers in the 16th century
a spiked helmet worn by German soldiers
salade, sallet
a light medieval helmet with a slit for vision
casquet, casquetel
a light open casque without a visor or beaver
Type of:
armor plate, armor plating, armour plate, plate armor, plate armour
specially hardened steel plate used to protect fortifications or vehicles from enemy fire

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