sill
C46553
concept
A sill is a horizontal structural or geological feature, such as the bottom frame of a window or door in construction or a tabular sheet of igneous rock intruded parallel to surrounding layers.
Observed surface forms (1)
- سهل ×2
Instances (3)
- مرج ابن عامر via concept surface "سهل"
- Palisades Sill
- صعيد عرفة via concept surface "سهل"