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.

Origin of helmet shell

1
First recorded in 1745–55

Words Nearby helmet shell

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023