It's called drumlin
A drumlin.
drumlins
The President's office is called the oval office.
A large mound or raised area of earth is called a hill or mound.
it is a hill
Oval. It is called the Oval Office.
A drumlin is a long, oval mound of glacial till or drift formed by the movement of ice sheets over the landscape. It often has a steep side facing the direction from which the ice came and a gentle slope on the opposite side.
oval lines
It is called an oval - which is not the same as an ellipse.
I would say that's a "mound" of earth.
A 3d oval is called an ovoid. Egg would work as well
In science, a three-dimensional oval is called an ovoid. Less formally, a three-dimensional oval shape is called an egg.