prolate vs egg-shaped

prolate and egg-shaped both are adjectives.

Word	Noun	Adjective	Verb	Adverb
prolate	No	Yes	No	No
egg-shaped	No	Yes	No	No

As adjectives, prolate and egg-shaped are synonyms defined as:

Other synonyms of prolate include elliptic, elliptical, oval-shaped, oval, ovate, oviform, ovoid.

prolate (adjective)	egg-shaped (adjective)
having the polar diameter greater than the equatorial diameter	rounded like an egg
rounded like an egg