gassing vs chemical process

gassing and chemical process both are nouns.

Word	Noun	Adjective	Verb	Adverb
gassing	Yes	No	No	No
chemical process	Yes	No	No	No

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

gassing: the process of interacting with gas
chemical process: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved

Other hypernyms of gassing include chemical action, chemical change.

gassing (noun)	chemical process (noun)
the deliberate act of poisoning some person or animal with gas	(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
the process of interacting with gas