multithreading Syllabification: (mul·ti·thread·ing)Pronunciation: /ˈməltiˈTHrediNG, ˈməltī-/Definition of multithreading noun Computing a technique by which a single set of code can be used by several processors at different stages of execution. Derivatives multithreadedPronunciation: /-ˈTHredəd/ adjective multithreading in other Oxford dictionaries Definition of multithreading in the British & World English dictionary