LTR Langage Temps-RĂ©el. (French for "real-time language") A French predecessor to {Ada}, LTR is {Modula}-like with a set of special-purpose {real-time} constructs based on an event model. It was mentioned in the reference below. ["An Overview of Ada", J.G.P. Barnes, Soft Prac & Exp 10:851-887 (1980)]. (1995-01-31)