serous membrane vs serosa

serous membrane and serosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
serous membrane	Yes	No	No	No
serosa	Yes	No	No	No

As nouns, serous membrane and serosa are synonyms defined as:

serous membrane and serosa: a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid

serous membrane (noun)	serosa (noun)
a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid	a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid