Jell-O vs hydrocolloid

Jell-O and hydrocolloid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jell-O	Yes	No	No	No
hydrocolloid	Yes	No	No	No

As nouns, hydrocolloid is a hypernym of Jell-O; that is, hydrocolloid is a word with a broader meaning than Jell-O:

Jell-O: fruit-flavored dessert (trade mark Jell-O) made from a commercially prepared gelatin powder
hydrocolloid: a substance that forms a gel with water

Other hypernyms of Jell-O include gelatin dessert.

Jell-O (noun)	hydrocolloid (noun)
fruit-flavored dessert (trade mark Jell-O) made from a commercially prepared gelatin powder	a substance that forms a gel with water