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sputum

spu·tum [ spytəm ] (plural spu·ta [ spytə ])


noun 
Definition:
 
coughed-up substance: a substance coughed up from the respiratory tract and usually ejected by mouth, e.g. saliva, phlegm, or mucus

[Late 17th century. < Latin, "saliva" < spuere "to spit"]
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