seeded vs combining form

seeded is not a noun while combining form is a noun.

Word	Noun	Adjective	Verb	Adverb
seeded	No	Yes	No	No
combining form	Yes	No	No	No

seeded (noun)	combining form (noun)
	a bound form used only in compounds

seeded (adjective)	combining form (adjective)
(of the more skilled contestants) selectively arranged in the draw for position in a tournament so that they meet each other in later rounds
sprinkled with seed
having or supplied with seeds
having seeds as specified
having the seeds extracted