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[muhl-tuh-pleks] /ˈmʌl təˌplɛks/
having many parts or aspects:
the multiplex problem of drug abuse.
manifold; multiple:
the multiplex opportunities in high technology.
Telecommunications. of, relating to, or using equipment permitting the simultaneous transmission of two or more trains of signals or messages over a single channel.
verb (used with object)
  1. to arrange (a circuit) for use by multiplex telegraphy.
  2. to transmit (two or more signals or messages) by a multiplex system, circuit, or the like.
verb (used without object)
to send several messages or signals simultaneously, as by multiplex telegraphy.
a multiplex electronics system.
(in map making) a stereoscopic device that makes it possible to view pairs of aerial photographs in three dimensions.
Also called multiplex cinema, multiplex theater. a group of two or more motion-picture 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
Related forms
multiplexer, multiplexor, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for multiplex
Contemporary Examples
Historical Examples
  • For the form of contrarieties is multiplex, as logicians teach.

  • For that which is in itself one, men imagine to be multiplex.

    On the Improvement of the Understanding Baruch Spinoza [Benedict de Spinoza]
  • At one angle of his multiplex character the man must have been a born actor.

    Twelve Men Theodore Dreiser
  • Harrowed by the multiplex difficulties surrounding an intrigue, Persis was kept waiting at the door a long time in the cold.

    What Will People Say? Rupert Hughes
  • In the multiplex theism of certain Christian churches, three entirely distinct deities consistent with only one.

    The Devil's Dictionary Ambrose Bierce
British Dictionary definitions for multiplex


  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
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
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Word Origin and History for multiplex

1550s (adj.), 1560s (n.), in mathematics, from Latin multiplex "having many folds; many times as great in number; of many parts" (see multiply).

Online Etymology Dictionary, © 2010 Douglas Harper
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