A mucous membrane is skin that produces mucus to prevent itself from becoming dry. It covers delicate parts of the body such as the inside of your nose.
[technical]
mucous membrane in British English
noun
a mucus-secreting membrane that lines body cavities or passages that are open to the external environment
Also called: mucosa
Derived forms
mucomembranous (ˌmjuːkəʊˈmɛmbrənəs)
adjective
mucous membrane in American English
a mucus-secreting membrane lining body cavities and canals connecting with the external air, as the alimentary canal and respiratory tract