coveredpart
nounUK /ˈkʌvəd pɑːt/
US /ˈkʌvərd pɑːrt/
A covered part is a piece of something that has a lid or top over it.
The covered part of the cup keeps the drink warm.
OTHER MEANINGS
2. A section of a machine that is protected by a cover.
Do not touch the covered part of the engine while it is hot.
3. A hidden or protected area of a place.
The covered part of the playground stays dry when it rains.
4. A part of a book or document that has a protective cover.
The covered part of the notebook kept the pages safe.