(medicine) Containing, secreting, or resembling serum; watery; a fluid or discharge that is pale yellow and transparent, usually representing something of a benign nature. (This contrasts with the term sanguine, which means blood-tinged and usually harmful.)

(anatomy) A thin membrane that secretes serum lining an internal body cavity, such as the peritoneum, the pericardium, and the pleura.

plural of serous membrane

plural of serous tunic

Synonym of serous membrane