part of part of results in development of lung development anatomical structure development lung epithelium development biological_process pulmonary epithelium development The biological process whose specific outcome is the progression of the lung epithelium from an initial condition to its mature state. This process begins with the formation of lung epithelium and ends with the mature structure. The lung epithelium is the specialized epithelium that lines the inside of the lung. GO:0060428 epithelium development lung epithelium