partcover
nounUK /ˈpɑːtˌkʌvə/
US /ˈpɑːrtˌkʌvər/
A partcover is a small cover that protects just one piece of something.
She put a partcover over the broken part of the toy so nobody would get hurt.
OTHER MEANINGS
2. A cover that shields only a portion of a machine or device.
The mechanic removed the partcover to reach the engine's belt.
3. A protective sleeve for a single component in a set.
Each tool in the kit came with its own partcover.
4. A removable piece that hides part of a surface.
He used a partcover to hide the scratch on the table.