what is thermography
Definition of THERMOGRAPHY. 1. : a process of writing or printing involving the use of heat; especially: a raised-printing process in which matter printed by letterpress is dusted with powder and heated to make the lettering rise. 2.. : a process of writing or printing involving the use of heat; especially: a raised-printing process in which matter printed by letterpress is dusted with powder and heated to make the lettering rise. 2.