Difference between perimeter and parapet
- the size of something as given by the distance around it
- a line enclosing a plane areas
- the boundary line or the area immediately inside the boundary
All that day and the next we crept away from the northern perimeter of the storm.
Indeed, there are times when the pedestrian traffic through the cemetery and around its perimeter is heavy enough to make one think about the need for a stop light inside.
The original building consisted of a wide perimeter block bisected by a pair of transverse wings to form three narrow internal patios.
- fortification consisting of a low wall
- a low wall along the edge of a roof or balcony
Upon these, and along the walls, which in most castles were topped by a parapet and a kind of embrasure called crennels, the defenders of the castle were stationed during a siege, and from thence discharged arrows, darts, stones, and every kind of annoyance they could procure, upon their enemies.
Hastening across the parapet from the opposite direction was a bowman as young as the man he'd shot.
You were not able to check whether there were any splits or tears in the lead in the parapet gutter?