An epithelial cell that lines the peripheral gas exchange region of the lungs of air-breathing vertebrates. [ http://www.ncbi.nlm.nih.gov/pubmed/29463737 http://www.ncbi.nlm.nih.gov/pubmed/20054144 GOC:tfm ]
Synonyms: pneumocyte alveolus of lung epithelial cell epithelial cell of alveolus of lung pneumonocyte alveolar epithelial cell