The pneumatized bones in birds help reduce their weight for flight.

I heard the loud noise of the pneumatic drill outside my window.

Pneumatic drills are commonly used in construction sites.

Walking pneumonia is a mild form of atypical pneumonia.

The bird's bones are pneumatised, allowing it to fly more easily.

The doctor diagnosed multiple pneumases in the patient's lungs.

The diver felt a sudden pressure in his ears as he descended deeper into the water, caused by the change in pneumasis.

The fossil exhibits numerous pneumaticities.

The bones in birds are pneumatized to make them lighter for flight.

The bird pneumatizes its bones to make them lighter for flying.