A balaclava (type of headgear).

A mining helmet, a hard hat worn by miners that usually carries a light on the front. / Eggcorn of pith helmet.

A surname from German.

plural of Helmbrecht

(historical) A bronze helmet of Ancient Greek origin, covering the head and neck, with slits for the eyes and mouth.

plural of Corinthian helmet

(UK, uncountable) The invasive plant Impatiens glandulifera. / Used other than figuratively or idiomatically: see policeman, helmet.

Being or relating to a helminthagogue.

plural of Helmer

Alternative form of behelmeted