oval lines
This refers to the line of elliptical machines manufactured by the Company "Precor". An Elliptical is an exercise machine that imitates walking, climbing or running.
You can have dwarf elliptical galaxies.
elliptical clause
They are not perfect spheres. If they were, they would have been called spherical, not elliptical!
They are called elliptical galaxies.
The major axis of an elliptical orbit is also known as an apse line.
They are elliptical galaxies.
The curved path of a planet as it orbits around a star is called an elliptical orbit. This path is determined by the gravitational force between the planet and the star, causing the planet to follow a curved trajectory rather than a straight line.
It is called an elliptical orbit.
Elliptical
Elliptical Orbit
It is called "Normal".