[ muhl-tuh-pleks ]
See synonyms for: multiplexmultiplexes on

  1. having many parts or aspects: the multiplex problem of drug abuse.

  2. manifold; multiple: the multiplex opportunities in high technology.

  1. Telecommunications. of, relating to, or using equipment permitting the simultaneous transmission of two or more signals or messages over a single channel.

verb (used with object)
  1. Telecommunications.

    • to arrange (a circuit) for use by multiplex telegraphy, allowing multiple synchronous signals to be sent and received on a single telegraph wire.

    • to transmit (two or more signals or messages) by a multiplex system, circuit, or the like, as in telegraph and telephone communication, or television and radio broadcasting.

verb (used without object)
  1. to send several messages or signals simultaneously, as in telegraph and telephone communication, or television and radio broadcasting.

  1. a multiplex electronics system.

  2. (in map making) a stereoscopic device that makes it possible to view pairs of aerial photographs in three dimensions.

  1. Also called mul·ti·plex cin·e·ma [muhl-tuh-pleks sin-uh-muh], /ˈmʌl təˌplɛks ˈsɪn ə mə/, mul·ti·plex the·a·ter [muhl-tuh-pleks thee-uh-ter]. /ˈmʌl təˌplɛks ˈθi ə tər/. a group of two or more movie theaters on the same site or in the same building, especially a cluster of adjoining theaters.

Origin of multiplex

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

Other words from multiplex

  • mul·ti·plex·er, mul·ti·plex·or, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use multiplex in a sentence

British Dictionary definitions for multiplex


/ (ˈmʌltɪˌplɛks) /

  1. telecomm

    • 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

    • (as modifier): a multiplex transmitter

    • a purpose-built complex containing a number of cinemas and usually a restaurant or bar

    • (as modifier): a multiplex cinema

  1. designating a method of map-making using three cameras to produce a stereoscopic effect

  2. a less common word for multiple

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

Origin of 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