an·thra·co·sis \ˌan(t)thrəˈkōsə̇s\noun (pluralanthraco·ses \-ˌsēz\) Etymology: New Latin, from anthrac- + -osis : a benign deposition of coal dust within the lungs from inhalation of sooty air — compare anthracosilicosis • an·thra·cot·ic\| ̷ ̷ ̷ ̷|käd.ik\adjective