dropsy vs edema

dropsy and edema both are nouns.

Word	Noun	Adjective	Verb	Adverb
dropsy	Yes	No	No	No
edema	Yes	No	No	No

As nouns, dropsy and edema are synonyms defined as:

dropsy and edema: swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities

Other synonyms of dropsy include hydrops, oedema.

dropsy (noun)	edema (noun)
swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities	swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities