- ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile
- the material that forms the hard outer covering of many animals
- hard outer covering or case of certain organisms such as arthropods and turtles
- the hard usually fibrous outer layer of some fruits especially nuts
💬 Examples
- "fired from a large gun"
- "the satellite is covered with a smooth shell of ice"
- "the clock has a walnut case"