ethanediol vs antifreeze

ethanediol and antifreeze both are nouns.

Word	Noun	Adjective	Verb	Adverb
ethanediol	Yes	No	No	No
antifreeze	Yes	No	No	No

As nouns, antifreeze is a hypernym of ethanediol; that is, antifreeze is a word with a broader meaning than ethanediol:

ethanediol: a sweet but poisonous syrupy liquid used as an antifreeze and solvent
antifreeze: a liquid added to the water in a cooling system to lower its freezing point

ethanediol (noun)	antifreeze (noun)
a sweet but poisonous syrupy liquid used as an antifreeze and solvent	a liquid added to the water in a cooling system to lower its freezing point