alveolate
/ˌælvioʊˈleɪt, ˌælvɪˈoʊteɪt/Definitions
1. adjective
Having small air-filled cavities or sacs.
“The alveolate structure of the lung is crucial for gas exchange.”
2. noun
A small air-filled cavity or sac, especially one in a lung.
“The doctor examined the patient’s alveolate in the chest X-ray.”