stellate vs radial

stellate is not a noun while radial is a noun.

Word	Noun	Adjective	Verb	Adverb
stellate	No	Yes	No	No
radial	Yes	Yes	No	No

As adjectives, stellate and radial are synonyms defined as:

stellate and radial: arranged like rays or radii; radiating from a common center

Other synonyms of stellate include radiate.

stellate (noun)	radial (noun)
	pneumatic tire that has radial-ply casing

stellate (adjective)	radial (adjective)
arranged like rays or radii; radiating from a common center	relating to or moving along or having the direction of a radius
	relating to or near the radius
	issuing in rays from a common center; relating to rays of light
	arranged like rays or radii; radiating from a common center