(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.)

plural of serous membrane

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

Synonym of serous membrane

plural of serous tunic