mul·ti·proc·ess·ing 
(mŭl′tē-prŏsĕs′ĭng, -prōsĕs′ĭng, -ə-sĭng, -tī-)
(mŭl′tē-prŏsĕs′ĭng, -prōsĕs′ĭng, -ə-sĭng, -tī-)n.
A method of computing in which different parts of a task are distributed between two or more similar central processing units, allowing the computer to complete operations more quickly and to handle larger, more complex procedures.