Sputum (noun)

Mucus and other matter that is coughed up from the lungs or airways.

Origin:

derived from the latin word sputare meaning "to spit".

Examples:

1. The patient coughed up a small amount of sputum into the cup.
2. The sputum was collected and analyzed for signs of infection.
3. The patient with pneumonia was producing more sputum than usual.
4. The lab technician examined the sputum sample under a microscope.
5. The sputum has a greenish color, indicating presence of infection.