enema vs clyster

enema and clyster both are nouns.

Word	Noun	Adjective	Verb	Adverb
enema	Yes	No	No	No
clyster	Yes	No	No	No

As nouns, enema and clyster are synonyms defined as:

enema and clyster: an injection of a liquid through the anus to stimulate evacuation; sometimes used for diagnostic purposes

enema (noun)	clyster (noun)
an injection of a liquid through the anus to stimulate evacuation; sometimes used for diagnostic purposes	an injection of a liquid through the anus to stimulate evacuation; sometimes used for diagnostic purposes