conic section vs oval

conic section and oval both are nouns.

Word	Noun	Adjective	Verb	Adverb
conic section	Yes	No	No	No
oval	Yes	Yes	No	No

As nouns, oval is a hyponym of conic section; that is, oval is a word with a more specific, narrower meaning than conic section:

conic section: (geometry) a curve generated by the intersection of a plane and a circular cone
oval: a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it

Other hyponyms of conic section include ellipse, parabola, hyperbola.

conic section (noun)	oval (noun)
(geometry) a curve generated by the intersection of a plane and a circular cone	a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it

conic section (adjective)	oval (adjective)
	rounded like an egg