helmet shell

noun

1. a predatory marine gastropod of the family Cassidae, characterized by a thick, heavy shell with a broadened outer lip.
2. the shell of this animal, often used for making cameos.

Word History and Origins

Origin of helmet shell¹

First recorded in 1745–55

Example Sentences

Axiom includes a new fitting system, a redesigned helmet shell platform, reimagined face-mask system and integrated smart helmet technology called InSite — which analyzes and reports on HIE compared to Riddell’s database of 8 million on-field player impacts.

From Seattle Times

After the accident, it took several days to fish pieces of helmet shell out of Rowan Malmberg’s long, light-brown hair.

From Washington Times

Unfortunately, an NFL rule requires teams to use the same helmet shell throughout the season and Washington’s regular burgundy lids clash with their slightly darker burgundy throwback jerseys.

From Washington Post

ET Monday through Friday or visit www.xenith.com and click on the “Helmet Shell Recall” link on the home page for more information.

From Seattle Times

First, the outer helmet shell will spread the force of impact over a greater surface area, lessening the blow to the part of her head that hits pavement.

From Slate