A hard, protective head covering, typically part of armour. / The upper part of a chemist's retort. / The hood-shaped upper sepal or petal of some flowers, as of the monkshood or the snapdragon.

(transitive) To cover with, or as if with, a helmet.

plural of helmet

Having or wearing a helmet, or having the appearance of wearing a helmet.

present participle of helmet

Alternative form of behelmeted

(historical) A helmet that entirely covers the head, including the face.

A lightweight helmet-shaped hat made of the pith of the sola or shola (Indian spongewood) plant covered with white cotton and faced with green cloth. Also known as a "sola topi", it was originally used by the British army in India in the 19th century, later used more widely.

plural of pith helmet

plural of bicycle helmet