Definition of mucous membrane noun from the Oxford Advanced Learner's Dictionary


mucous membrane

BrE BrE//ˌmjuːkəs ˈmembreɪn//
; NAmE NAmE//ˌmjuːkəs ˈmembreɪn//
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a thin layer of skin that covers the inside of the nose and mouth and the outside of other organs in the body, producing mucus to prevent these parts from becoming dry
See the Oxford Advanced American Dictionary entry: mucous membrane