Maximum Information Rate Management Information Repository Maximum Individual Risk Microwave Imaging Radiometer Microwave Impulse Radar Mirror main immunogenic region major impact report Malfunction Investigation Report Master Inventory Record MEMORY INFORMATION REGISTER MEMORY INPUT REGISTER Micro-Instruction Register Mission Integration Review Multiple Internal Reflection multiple isomorphous replacement Multiplex Input Router Music Information Retrieval major immunodominant region Major NATO Command Interoperability Re… Malfuntion Investigation Report Mallinckrodt Institute of Radiology mammalian interspersed repeat Management implementation review Management Information Reporting managing interpersonal relationships masseter inhibitory reflex massive intestinal resection Master Index of Repairables Master Item Record