outershell
nounUK /ˈaʊtəʃɛl/
US /ˈaʊtərʃɛl/
The hard outside part that keeps something safe inside.
The turtle hid inside its outershell when it got scared.
OTHER MEANINGS
2. The hard outer covering of an animal such as a turtle or snail.
The crab's outershell protects its soft body.
3. The outside layer of a jacket or coat.
The rain soaked through the outershell of his coat.
4. The protective outer case of a machine or device.
The phone's outershell cracked when it fell.
5. The outer wall of a building or structure.
Workers painted the outershell of the old house.