helmet
n. தலைக்கவசம், போர்வீரர் கவசத் தலைப்பகுதி, தீயணைப்புப் படைவீரர் தலைகாப்புக் கவிகை, வேனிற் காப்பான அழுத்தத் தோல்தொப்பி, நெட்டிக்காப்பிட்ட வேனிற் பருவத் தொப்பி, வடிகல முகடு, கிளிஞ்சல் வகையின் சிப்பி, (தாவ.) மலர் வகைகளிற் புறவிதழின் வளைந்த மேன்முகடு.
Hel"met, n. Etym: [OF. helmet, a dim of helme, F. heaume; of Teutonic origin; cf. G. helm, akin to AS. & OS. helm, D. helm, helmet, Icel. hjalmr, Sw. hjelm, Dan. hielm, Goth. hilms; and prob. from the root of AS. helan to hide, to hele; cf. also Lith. szalmas, Russ. shleme, Skr. çarman protection. sq. root17. Cf. Hele, Hell, Helm a helmet.] 1. (Armor) Defn: A defensive covering for the head. See Casque, Headpiece, Morion, Sallet, and Illust. of Beaver. 2. (Her.) Defn: The representation of a helmet over shields or coats of arms, denoting gradations of rank by modifications of form. 3. A helmet-shaped hat, made of cork, felt, metal, or other suitable material, worn as part of the uniform of soldiers, firemen, etc., also worn in hot countries as a protection from the heat of the sun. 4. That which resembles a helmet in form, position, etc.; as: (a) (Chem.) The upper part of a retort. Boyle. (b) (Bot.) The hood-formed upper sepal or petal of some flowers, as of the monkshood or the snapdragon. (c) (Zoöl.) A naked shield or protuberance on the top or fore part of the head of a bird. Helmet beetle (Zoöl.), a leaf-eating beetle of the family Chrysomelidæ, having a short, broad, and flattened body. Many species are known. -- Helmet shell (Zoöl.), one of many species of tropical marine univalve shells belonging to Cassis and allied genera. Many of them are large and handsome; several are used for cutting as cameos, and hence are called cameo shells. See King conch. -- Helmet shrike (Zoöl.), an African wood shrike of the genus Prionodon, having a large crest.