Thermocautery \Ther`mo*cau"ter*y\, n. [Thermo- + cautery.] (Surg.) Cautery by the application of heat. [1913 Webster] {Paquelin's thermocautery}, thermocautery by means of a hollow platinum point, which is kept constantly hot by the passage through it of benzine vapor. [1913 Webster] Thermochemic