gelatinous vs gelatin

gelatinous is not a noun while gelatin is a noun.

Word	Noun	Adjective	Verb	Adverb
gelatinous	No	Yes	No	No
gelatin	Yes	No	No	No

gelatinous (noun)	gelatin (noun)
	a thin translucent membrane used over stage lights for color effects
	an edible jelly (sweet or pungent) made with gelatin and used as a dessert or salad base or a coating for foods
	a colorless water-soluble glutinous protein obtained from animal tissues such as bone and skin

gelatinous (adjective)	gelatin (adjective)
thick like gelatin