fumigant vs chemical

fumigant and chemical both are nouns.

Word	Noun	Adjective	Verb	Adverb
fumigant	Yes	No	No	No
chemical	Yes	Yes	No	No

As nouns, chemical is a hypernym of fumigant; that is, chemical is a word with a broader meaning than fumigant:

fumigant: a chemical substance used in fumigation
chemical: material produced by or used in a reaction involving changes in atoms or molecules

Other hypernyms of fumigant include chemical substance.

fumigant (noun)	chemical (noun)
a chemical substance used in fumigation	material produced by or used in a reaction involving changes in atoms or molecules

fumigant (adjective)	chemical (adjective)
	relating to or used in chemistry
	of or made from or using substances produced by or used in reactions involving atomic or molecular changes