cautēr, ēris, m., = καυτήρ (accessory form to cauterium, and only post-class.).
I A branding-iron , Pall. 1, 41, 2; 1, 43, 3; Prud. στεφ. 10, 490.—Trop.: cauterem adigere ambitioni, Tert. Pall. 5.—
II A wound made by burning , Prud. στεφ. 5, 229.
·noun A hot iron for searing or cauterizing. ...
Webster's Dictionary of the English Language