hematochezia vs laxation

hematochezia and laxation both are nouns.

Word	Noun	Adjective	Verb	Adverb
hematochezia	Yes	No	No	No
laxation	Yes	No	No	No

As nouns, laxation is a hypernym of hematochezia; that is, laxation is a word with a broader meaning than hematochezia:

hematochezia: passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer)
laxation: the elimination of fecal waste through the anus

Other hypernyms of hematochezia include defecation, shitting.

hematochezia (noun)	laxation (noun)
passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer)	the act of making something less tight
	the elimination of fecal waste through the anus