BACK TO sputum

sputum vs. mucus

[ spyoo-tuhm ]
  1. matter, as saliva mixed with mucus or pus, expectorated from the lungs and respiratory passages.
[ myoo-kuhs ]
  1. a viscous, slimy mixture of mucins, water, electrolytes, epithelial cells, and leukocytes that is secreted by glands lining the nasal, esophageal, and other body cavities and serves primarily to protect and lubricate surfaces.

Compare More Commonly Confused Words