pulmonology
/ˌpʌlməˈnɒlədʒi/ /ˌpʊlməˈnɒlədʒi/Medicine
noun
The branch of medicine concerned with diseases of the respiratory system; respiratory or pulmonary medicine.
Origin
1950s; earliest use found in The Lancet. From classical Latin pulmōn-, pulmō lung + -ology.