Main Entry: hel·met

Pronunciation: \ˈhel-mət\

Function: noun

Etymology: Middle English, from Middle French, diminutive of helme helmet, of Germanic origin; akin to Old English helm helmet, Old High German helan to conceal — more at hell

Date: 15th century

1 : a covering or enclosing headpiece of ancient or medieval armor — see armor illustration
2 : any of various protective head coverings usually made of a hard material to resist impact
3 : something resembling a helmet

— hel·met·ed \-mə-təd\ adjective

— hel·met·like \-mət-ˌlīk\ adjective