Noun: lower respiratory tract smear
- Any of several cytologic smears obtained from different parts of the lower respiratory tract; used for cytologic study of cancer and other diseases of the lungs
"The doctor ordered a lower respiratory tract smear to check for signs of lung infection";
- bronchoscopic smear, sputum smear
Derived forms: lower respiratory tract smears
Type of: cytologic smear, cytosmear, smear