Definitions

1. noun

the process or result of forming air sacs, especially in the lungs

“The doctor examined the patient’s chest X-ray to look for signs of alveolation, which could indicate pneumonia.”

2. noun

a small cavity or air space, especially in the lungs or the fossilized remains of marine organisms

“The geologist studied the alveolation in the ancient coral reefs to learn more about the region’s geological history.”