From Longman Dictionary of Contemporary Englishmucusmu‧cus /ˈmjuːkəs/ noun [uncountable] HBa thick liquid produced in parts of your body such as your nose —mucous adjective [only before noun]
Examples from the Corpus
mucus• The latter is characterized by blood and mucus in the stools.• Ropy, yellow or green mucus with rattling in the chest.• But even this normally impervious mucus is easily breached by ethanol.• Will the virus attach to lung cells in cystic fibrosis patients, who typically have lots of mucus in their lungs?• It has also been proposed that H pylori ammonia production will lead to mucosal damage by denaturing the protective mucus layer.• Blow your nose by holding one nostril shut and forcing the mucus to shoot out the other.• Before an aromatic molecule can be detected, it must first be dissolved in the mucus.• Terrestrial amphibians respire through their skin and to do this must keep it moist with mucus.Origin mucus (1600-1700) Latin 