NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,036 terms related to cancer and medicine.
- listen (per-TUH-sis)
- A serious bacterial infection of the lungs and breathing tubes that spreads easily. Pertussis begins like a cold, but develops into severe coughing and gasping for air. Long spells of coughing may cause vomiting, and broken blood vessels in the eyes and on the skin. Also called whooping cough.