helmet

[ hel-mit ]
/ ˈhɛl mɪt /

noun

any of various forms of protective head covering worn by soldiers, firefighters, divers, cyclists, etc.
medieval armor for the head.
(in fencing, singlestick, etc.) a protective device for the head and face consisting of reinforced wire mesh.
anything resembling a helmet in form or position.

Origin of helmet

1400–50; late Middle English < Middle French healmet, helmet, diminutive of helme helm2

OTHER WORDS FROM helmet

hel·met·ed, adjective hel·met·like, adjective un·hel·met·ed, adjective

Example sentences from the Web for helmet

British Dictionary definitions for helmet

helmet
/ (ˈhɛlmɪt) /

noun

a piece of protective or defensive armour for the head worn by soldiers, policemen, firemen, divers, etc
biology a part or structure resembling a helmet, esp the upper part of the calyx of certain flowers

Derived forms of helmet

helmeted, adjective

Word Origin for helmet

C15: from Old French, diminutive of helme, of Germanic origin