elliptical
Having an oval shape. / Omitting words from a sentence that are understood from context. / A stationary exercise machine that simulates walking or running.
Adjective[C/U] Both
In a geometric sense, the word evokes a stretched circle, suggesting a path that is elongated and asymmetrical. It is the standard term in astronomy and mathematics to describe non-circular orbits or curves.
Countable when referring to the physical gym machine used for cardio. Uncountable when describing the geometric property of a shape.