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From The Collaborative International Dictionary of English v.0.48:
Ustulation \Us`tu*la"tion\, n. [Cf. F. ustulation.] [1913 Webster] 1. The act of burning or searing. [R.] --Sir W. Petty. [1913 Webster] 2. (Old Chem.) The operation of expelling one substance from another by heat, as sulphur or arsenic from ores, in a muffle. [1913 Webster] 3. (Pharm.) (a) The roasting or drying of moist substances so as prepare them for pulverizing. (b) The burning of wine. [1913 Webster] 4. Lascivious passion; concupiscence. [Obs.] [1913 Webster] It is not certain that they took the better part when they chose ustulation before marriage, expressly against the apostle. --Jer. Taylor. [1913 Webster]