sputum

Từ điển Oxford Learners Wordfinder Dictionary

noun

expectorated matter;
saliva mixed with discharges from the respiratory passages;
in ancient and medieval physiology it was believed to cause sluggishness
• Syn:
phlegm
• Derivationally related forms:
phlegmy (for: phlegm)
• Hypernyms:
mucus, mucous secretion