- A defensive covering for the head. See Casque, Headpiece,
Morion, Sallet, and Illust. of Beaver. - The representation of a helmet over shields or coats of
arms, denoting gradations of rank by modifications of form. - 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. - That which resembles a helmet in form, position, etc. - The upper part of a retort. - The hood-formed upper sepal or petal of some flowers, as of
the monkshood or the snapdragon. - A naked shield or protuberance on the top or fore part of
the head of a bird.