As nouns the difference between mucus and expectoration
is that mucus is (physiology) a slippery secretion from the lining of the mucous membranes while expectoration is the action of expectorating, of ejecting phlegm or mucus from the throat or lungs by coughing, hawking, or spitting.
mucus
Noun
(-)
(physiology) A slippery secretion from the lining of the mucous membranes.
Hyponyms
* phlegm
* rheum
Derived terms
* mucoid
* mucoidal
* mucous
* mucilaginous
Related terms
* mucosa
* mucositis
expectoration
English
Noun
(en-noun)
The action of expectorating, of ejecting phlegm or mucus from the throat or lungs by coughing, hawking, or spitting.
That which is expectorated, as phlegm or mucus.