anthracosis

noun

an·​thra·​co·​sis ˌan(t)-thrə-ˈkō-səs 

plural anthracoses -ˌsēz 

: black discoloration of bronchi from carbon pigment that typically causes deformation and obstruction, may be asymptomatic or cause respiratory symptoms (such as cough and labored breathing), and is often associated with the inhalation of coal dust and wood smoke

anthracotic

-ˈkät-ik 

adjective