gas embolism vs sickness

gas embolism and sickness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gas embolism	Yes	No	No	No
sickness	Yes	No	No	No

As nouns, sickness is a hypernym of gas embolism; that is, sickness is a word with a broader meaning than gas embolism:

gas embolism: pain resulting from rapid change in pressure
sickness: impairment of normal physiological function affecting part or all of an organism

Other hypernyms of gas embolism include illness, malady, unwellness.

gas embolism (noun)	sickness (noun)
obstruction of the circulatory system caused by an air bubble as, e.g., accidentally during surgery or hypodermic injection or as a complication from scuba diving	impairment of normal physiological function affecting part or all of an organism
pain resulting from rapid change in pressure	the state that precedes vomiting
	defectiveness or unsoundness