helmet

noun

1. A hard, protective head covering, typically part of armour.

   “Now that she had rested and had fed from the luncheon tray Mrs. Broome had just removed, she had reverted to her normal gaiety. She looked cool in a grey tailored cotton dress with a terracotta scarf and shoes and her hair a black silk helmet.”

   “Most speedboarders wear helmets, knee and elbow pads, and occasionally all-in-one aerodynamic suits, to protect themselves.”

2. A hard, protective head covering, typically part of armour.
3. That which resembles a helmet in form, position, etc.
4. That which resembles a helmet in form, position, etc.
5. That which resembles a helmet in form, position, etc.
6. That which resembles a helmet in form, position, etc.

   “And it makes me sick, the thought of your lipstick on his helmet.”

7. (broadly, derogatory)That which resembles a helmet in form, position, etc.

   “Jarvo’s a stinky old helmet.”

verb

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

   “There was no nonsense about these women—no hysteria, no top-note emotion. They were not out for smashing windows or helmetting policemen, or blowing up things sky-high.”

   “COMRADE, I had done well with you to swear / Allegiance to the colors of romance / In the great days when our sweet mistress, France, / Girded her loins and helmetted her hair.”

   “And then they’re fleeing in a second rain of meteorites, their arms helmetting their heads, as they run away from us.”