Ustulation /(?)/

Us·tu·la·tion

Ustulation

n.
  1. The act of burning or searing. [R.]
  2. The operation of expelling one substance from another by heat, as sulphur or arsenic from ores, in a muffle. (Old Chem.)
  3. The roasting or drying of moist substances so as prepare them for pulverizing. (Pharm.)
  4. Lascivious passion; concupiscence. [Obs.]
    It is not certain that they took the better part when they chose ustulation before marriage, expressly against the apostle.