palisade
it was made of logs
Frontier
4 logs
A curtain wall is a wall that surrounds the castle for protection.
I would think it refers to the blocks in the wall being even with each other, fair faced, and the morter joints being filled and cleaned. Pointed.
protection
The cell wall of a fungi is made of glucosamine polymer chitin. The fungi wall serves as a cell protection in osmotic pressure and environmental changes.
10
There is no other purpose for them building the wall other than protection :)
Protection from infection
Protection and regidity
Cell wall supports to the cell.Also give protection to it.