pulmonologynoun [ U ]
uk/ˌpʊl.məˈnɒl.ə.dʒi//ˌpʊl.məˈnɑː.lə.dʒi/the study and treatment of medical conditions of the lungs and respiratory system (= the organs that make it possible for you to breathe)
pulmonologist
noun [ C ] uk/ˌpʊl.məˈnɒl.ə.dʒɪst//ˌpʊl.məˈnɑː.lə.dʒɪst/
The pulmonologist ordered a lung biopsy.