pneumonoconiosis

noun
pneu·​mo·​no·​co·​ni·​o·​sis | \ -ˌkō-nē-ˈō-səs How to pronounce pneumonoconiosis (audio) \
plural pneumonoconioses\ -​ˌsēz How to pronounce pneumonoconioses (audio) \

Medical Definition of pneumonoconiosis