释义 |
hel·met \ˈhelmə̇t, ˈheu̇m-, usu -ə̇d.+V\ noun (-s) Usage: often attributive Etymology: Middle French helmet, heaumet, diminutive of helme, heaume helmet, of Germanic origin; akin to Old English & Old High German helm helmet, Old Norse hjalmr, Gothic hilms; akin to Old English helan to hide, conceal — more at hell 1. a. : a covering or enclosing headpiece of ancient or medieval armor — see armet, basinet, morion, sallet; armor illustration b. : a piece of medieval head armor smaller than a heaume and resting on the head : casque c. : a heraldic representation of a helmet depicted above the shield in an achievement and supporting the crest 2. : any of various protective head coverings usually made of a hard material (as metal, heavy leather, fiber) to resist impact and supported by bands that prevent direct contact with the head for comfort and ventilation; specifically : one covering the top, back, and sides of the head and often also the neck and having a window for the face and sometimes breathing or radio apparatus (as for a diver) — see crash helmet, welder's helmet; compare gas mask, topee 3. : a variety of tumbler pigeon having a white ground color and a sharply defined cap and the tail of another color 4. : something resembling a helmet in form or position: as a. : a hood-shaped upper sepal or petal of some flowers (as monkshood or snapdragon) b. : casque 3 c. : a galea of an insect 5. a. : a close-fitting cap (as of leather or knitted material) covering the top, back, and sides of the head and fastening under the chin — compare balaclava b. : a woman's small close-fitting brimless hat |