Multiprocessing System (multiprocessor; multiple processor) Definition/Meaning:  

A system in which more than one processor may be active at any one time. While the processors are actively executing separate processes they run completely asynchronously. However it is essential to provide synchronization between the processors when they access critical system resources or critical regions of system code. A multiprocessing system is also a multiprogramming system.

Near by Terms: Multiaccess System Multibus MULTICS  Multidimensional Array Multidrop Line Multilayer Device Multilevel Memory Multilevel Security Multilinked Multiple-Address Machine Multiple Assignment Multiple Precision (multiprecision) Multiple-Valued Logic (multivalued logic; non binary logic) Multiplexed Bus Multiplexer Multiplexing           Multiplier Multiply Connected Multipoint Connection      Multipoint Line Multiprocessing System (multiprocessor; multiple processor) Multiprogramming System Multitape Turing Machine Multitasking Multithreading Multiuser System Multivariate Analysis Multivibrator Muitiway Search Tree Mutual Exclusion