armorshell

noun
UK /ˈɑːməʃel/
US /ˈɑːrmərʃel/

A hard cover that keeps an animal safe.

The turtle hid inside its armorshell when it got scared.


OTHER MEANINGS

2. A protective outer layer on a machine or vehicle.

The robot's armorshell kept its wires safe from rain.

3. A tough covering on a seed or nut.

The nut's armorshell cracked open to show the soft inside.

4. A hard case used to carry something safely.

She put her glasses in a small armorshell before packing.