‖ fettbol, -boleMin.|ˈfɛtbəʊl| [Ger.fettbol (Freiesleben 1831), f.fett fat n.1 + bol bole.] A variety of chloropal. 1835C. U. Shepard Min. ii. 207 Fettbole. Massive; composition impalpable.1868Dana Min. 461 Fettbol has a liver-brown color, a slightly greasy lustre.