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

mucous membrane

noun
 
/ˌmjuːkəs ˈmembreɪn/
 
/ˌmjuːkəs ˈmembreɪn/
(anatomy)
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  1. 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 mucous membrane in the Oxford Advanced American Dictionary
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trait
noun
 
 
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