part of part of results in development of lung development anatomical structure development lung connective tissue development GO:0060427 The biological process whose specific outcome is the progression of lung connective tissue from an initial condition to its mature state. This process begins with the formation of lung connective tissue and ends with the mature structure. The lung connective tissue is a material made up of fibers forming a framework and support structure for the lungs. biological_process pulmonary connective tissue development connective tissue development lung connective tissue