serous membrane

noun Anatomy, Zoology.

1. any of various thin membranes, as the peritoneum, that line certain cavities of the body and exude a serous fluid.

noun

1. any of the smooth moist delicate membranes, such as the pleura or peritoneum, that line the closed cavities of the body and secrete a watery exudate

n.

1. A thin, two-part membrane that secretes a serous fluid and lines a closed body cavity, covering the organs that lie within that cavity.serosa serous tunic