excretion vs constipation

excretion and constipation both are nouns.

Word	Noun	Adjective	Verb	Adverb
excretion	Yes	No	No	No
constipation	Yes	No	No	No

excretion (noun)	constipation (noun)
the bodily process of discharging waste matter	the act of making something futile and useless (as by routine)
waste matter (as urine or sweat but especially feces) discharged from the body	irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis