elliptical

adjectives

rounded like an egg
egg-shaped, elliptic, elliptical, oval, oval-shaped, ovate, oviform, ovoid, prolate
is derived from
ellipse
characterized by extreme economy of expression or omission of superfluous elements
"the dialogue is elliptic and full of dark hints"; "the explanation was concise, even elliptical to the verge of obscurity"- H.O.Taylor
elliptic, elliptical