It is irregularly shaped and has a sharp, fresh rim.
This is a circular, bowl-shaped crater with a sharp rim that has not been significantly eroded.
A scratch tool with a sharp rim is mounted at a predetermined angle to the testing surface.
The perimeter is only slightly worn, and retains a sharp rim that projects above the surroundings.
The hill takes the form of a plateau with sharp rims on several sides.
Thales has a sharp, circular rim that has received little erosion.
A crater came into the field of view: so vast and deep only its near rim, high and sharp, was visible.
The player directs a stream of air over the sharp rim or on top of the pipe.
Jazz looked up again, saw the moon halved now by the sharp rim of the mountains.
This is a circular crater with a sharp rim that has a slightly flattened oval perimeter.