Origin of multiplex

From Latin, dating back to 1550–60; see origin at multi-, -plex

Related forms

mul·ti·plex·er, mul·ti·plex·or, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for multiplexer (1 of 2)



/ (ˈmʌltɪˌplɛksə) /


computing a device that enables the simultaneous transmission of several messages or signals over one communications channel

British Dictionary definitions for multiplexer (2 of 2)


/ (ˈmʌltɪˌplɛks) /


  1. the use of a common communications channel for sending two or more messages or signals. In frequency-division multiplex the frequency band transmitted by the common channel is split into narrower bands each of which constitutes a distinct channel. In time-division multiplex different channels are established by intermittent connections to the common channel
  2. (as modifier)a multiplex transmitter
  1. a purpose-built complex containing a number of cinemas and usually a restaurant or bar
  2. (as modifier)a multiplex cinema


designating a method of map-making using three cameras to produce a stereoscopic effect
a less common word for multiple


to send (messages or signals) or (of messages or signals) be sent by multiplex

Word Origin for multiplex

C16: from Latin: having many folds, from multi- + plicāre to fold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012