noun
: any of various clear oils (as a heavy lubricating oil) obtained usually from residues of petroleum distillation by refining (as by removal of wax)
noun
: any of various clear oils (as a heavy lubricating oil) obtained usually from residues of petroleum distillation by refining (as by removal of wax)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012