線せん維い症しょうせんいしょうMeanings1nounfibrosismedicineMedical term for the formation of excess fibrous connective tissue in an organ or tissue.肺はい線せん維い症しょうは呼こ吸きゅう困こん難なんを引ひき起おこすことがある。Pulmonary fibrosis can cause breathing difficulties.