- (n.) 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.
- (n.) The upper part of a retort.
- (n.) A defensive covering for the head. See Casque, Headpiece, Morion, Sallet, and Illust. of Beaver.
- (n.) A naked shield or protuberance on the top or fore part of the head of a bird.
- (n.) That which resembles a helmet in form, position, etc.
- (n.) The representation of a helmet over shields or coats of arms, denoting gradations of rank by modifications of form.
- (n.) The hood-formed upper sepal or petal of some flowers, as of the monkshood or the snapdragon.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). helmet. Retrieved September 23, 2026, from http://smartdefine.org/helmet/definitions/2015767 |
| Chicago | Webster's. 2011. "helmet" http://smartdefine.org/helmet/definitions/2015767 (accessed September 23, 2026). |
| Harvard | Webster's 2011, helmet, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/helmet/definitions/2015767>. |
| MLA | Webster's. "helmet" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/helmet/definitions/2015767> |