diarrhoetic vs diarrhoeal

diarrhoetic and diarrhoeal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
diarrhoetic	No	Yes	No	No
diarrhoeal	No	Yes	No	No

As adjectives, diarrhoetic and diarrhoeal are synonyms defined as:

Other synonyms of diarrhoetic include diarrheal, diarrheic, diarrhetic, diarrhoeic.

diarrhoetic (adjective)	diarrhoeal (adjective)
of or relating to diarrhea	of or relating to diarrhea