mucosa

n. membrane which secretes mucus

The mucous membranes (or mucosae; singular: mucosa) are linings of mostly endodermal origin, covered in epithelium, and are involved in absorption and secretion. They line various body cavities that are exposed to the external environment and internal organs. It is at several places continuous with skin: at the nostrils, the lips, the ears, the genital area, and the anus. The sticky, thick fluid secreted by the mucous membranes and gland is termed mucus. The term mucous membrane refers to where they are found in the body and not every mucous membrane secretes mucus.
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Mucosa /mu·co·sa/ [L.] mucous membrane.muco´sal mu·co·sa n. pl. mu·co·sas or mu·co·sae See mucous membrane. mu·co sal adj. [more]Mucosa - Community and Resources

Noun
1. mucus-secreting membrane lining all body cavities or passages that communicate with the exterior
(synonym) mucous membrane
(hypernym) membrane, tissue layer
(hyponym) conjunctiva

n. mucosa, mucous membrane

adj. mucous, resembling mucus, characterized by secretion of mucus