chemosis vs dropsy

chemosis and dropsy both are nouns.

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

As nouns, dropsy is a hypernym of chemosis; that is, dropsy is a word with a broader meaning than chemosis:

chemosis: edema of the mucous membrane of the eyeball and eyelid lining
dropsy: swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities

Other hypernyms of chemosis include edema, hydrops, oedema.

chemosis (noun)	dropsy (noun)
edema of the mucous membrane of the eyeball and eyelid lining	swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities