constipation vs excrement

constipation and excrement both are nouns.

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

constipation (noun)	excrement (noun)
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