sputum

Noun
  1. Expectorated matter;
    Saliva mixed with discharges from the respiratory passages;
    In ancient and medieval physiology it was believed to cause sluggishness (synset 105423159)
    is a type of: mucous secretion, mucus - protective secretion of the mucous membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
    same as: phlegm

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