spu·tum
noun/ˈspjuːtəm/
/ˈspjuːtəm/
[uncountable] (medical)- liquid from the throat or lungs, especially when it is coughed up (= forced up from the lungs, etc.) because of disease
(尤指因疾病而咳出的)痰 - blood in the sputum
痰中的血丝
Word Originlate 17th cent.: from Latin, neuter past participle of spuere ‘to spit’. - blood in the sputum