Prolate in a sentence as an adjective

Unfortunately it was assumed that the earth was a prolate spheroid, when actually it is oblate.

Prolate definitions

adjective

having the polar diameter greater than the equatorial diameter; "a prolate spheroid is generated by revolving an ellipse about its major axis"

See also: watermelon-shaped

adjective

rounded like an egg

See also: egg-shaped elliptic elliptical oval oval-shaped ovate oviform ovoid