Found 1 items, similar to Helmet shell.
English → English
Definition: Helmet shell
, n. [OF. helmet, a dim of helme, F. heaume; of
Teutonic origin; cf. G. helm, akin to AS. & OS. helm, D.
helm, helmet, Icel. hj[=a]lmr, 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. [,c]arman
protection. [root]17. Cf. Hele
1. (Armor) A defensive covering for the head. See Casque
, and Illust. of Beaver
2. (Her.) 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) (Zo["o]l.) A naked shield or protuberance on the top
or fore part of the head of a bird.
(Zo["o]l.), a leaf-eating beetle of the
, having a short, broad, and
flattened body. Many species are known.
(Zo["o]l.), one of many species of tropical
marine univalve shells belonging to Cassis
genera. Many of them are large and handsome; several are
used for cutting as cameos, and hence are called cameo shells
. See King conch
(Zo["o]l.), an African wood shrike of the
, having a large crest.