Mucosa

Definition
noun
(1) A lubricating membrane lining all body passages and cavities.
(2) Any lining containing mucous secreting glands.
Supplement
Examples are those lining the mouth, nasal passages, vagina and urethra. They are involved in absorption and secretion.
Word origin: From Latin mūcōsa, feminine of mūcōsus, mucous
Also called: mucous membrane