Also found in: Medical.
the act or process of searing or burning
[C17: from Late Latin ustulāre, from Latin ūrere to burn]
Obsolete, a burning sexual desire; a lustful passion.See also: Sex
Pharmacy. the process of heating moist substances so that they can be pulverized.See also: Remedies
Rare. the act or process of burning or searing. — ustorious, ustulate, adj.See also: Fire