Definition of mucosa in English:



  • A mucous membrane.

    ‘the intestinal mucosa’
    • ‘The discoloration can also occur in nasal, bronchial mucosa, fingernails and toenails.’
    • ‘It can have an irritant effect on the gastrointestinal mucosa, and in large doses will act as an emetic.’
    • ‘It's no better at pain relief and no easier on the gastrointestinal mucosa than other drugs in its class, they say.’
    • ‘Celiac disease is a T-cell-mediated disorder triggered by gluten in susceptible subjects, affecting not only the small bowel but also the gastric and colonic mucosae.’
    • ‘Gluten causes the intestinal mucosa to lose its villous structure and absorptive capacity.’
    • ‘Target organs in this respect include nasal or oral cavity, lung, oesophagus, stomach mucosa, duodenum or skin.’
    • ‘A continuous film covers the mucosa of the lungs, extending from the alveoli to the larger airways.’
    • ‘Almost all fats are absorbed into the lymph system from the intestinal mucosa.’
    • ‘Several specialised cells in the gastric mucosa contribute to the control of acid secretion.’
    • ‘Gastroesophageal endoscopy provides the best assessment of the esophageal mucosa.’
    • ‘Lesions of the oral mucosa may be seen on the gingiva, buccal mucosa, palate, tongue, and lips.’
    • ‘Solitary lymph nodules may be present in the mucosa and in the connective tissue around the cartilage.’
    • ‘It is important to remove any mucous covering the mucosa to allow adequate visualization.’
    • ‘Buccal mucosa was scraped by a sterile spatula and smeared on the slides.’
    • ‘Nodules may also appear in the skeletal muscles and mucosae of the digestive and respiratory tracts.’
    • ‘Many drugs enhance the damage that gastric fluid does to the esophageal mucosa.’
    • ‘Preparations requiring enemas may result in mechanical damage to bowel mucosa.’
    • ‘Sedation may be necessary for appraisal of the rectal mucosa in an anxious child presenting for the first time.’
    • ‘This leads to a more prolonged exposure of the esophageal mucosa to gastric fluid than normal.’
    • ‘The buccal mucosa is the most common site of involvement in the oral cavity.’


Late 19th century: modern Latin, feminine of mucosus (see mucous).