- Mucosa is a mucus membrane or a lining of a part of the body that secretes mucus.
The inner lining of your nose is an example of a mucosa.
- mucosal adjective
Used by arrangement with John Wiley & Sons, Inc.
noun pl. mu·co·sae or mu·co·sas
Origin: From Latin mūcōsa, feminine of mūcōsus, mucous; see mucous.
- mu·coˈsal adjective