mutex /ˈmjuːtɛks/noun 1verb 1forms 3 noun1 •An object in a program that serves as a lock, used to negotiate mutual exclusion among threads.The ability to set a maximum waiting time provides another reason why in some circumstances, you might prefer to use a mutex rather than a lock statement. — 2004 verb1 •To apply a mutex to.Or you can have a single pipe that is mutexed so each thread can only write to the pipe exclusively. Alternatively, you can have each thread put the finished fd in a globally mutexed list. — 2002 formsmutexed · mutexing · mutexes