having many parts or aspects: the multiplex problem of drug abuse.
manifold; multiple: the multiplex opportunities in high technology.
Telecommunications. of, pertaining 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)
to arrange (a circuit) for use by multiplex telegraphy.
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.

1550–60; < Latin; see multi-, -plex

multiplexer, multiplexor, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
multiplex (ˈmʌltɪˌplɛks)
1.  telecomm
 a.  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
 b.  (as modifier): a multiplex transmitter
2.  a.  a purpose-built complex containing a number of cinemas and usually a restaurant or bar
 b.  (as modifier): a multiplex cinema
3.  designating a method of map-making using three cameras to produce a stereoscopic effect
4.  a less common word for multiple
5.  to send (messages or signals) or (of messages or signals) be sent by multiplex
[C16: from Latin: having many folds, from multi- + plicāre to fold]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1550s, in mathematics, from L. multiplex, from comb. form of multus (see multi-) + plex "fold," from plicare (see ply (v.)).
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

multiplexing definition

1. (Or "multiple access") Combining several signals for transmission on some shared medium (e.g. a telephone wire). The signals are combined at the transmitter by a multiplexor (a "mux") and split up at the receiver by a demultiplexor. The communications channel may be shared between the independent signals in one of several different ways: time division multiplexing, frequency division multiplexing, or code division multiplexing.
If the inputs take turns to use the output channel (time division multiplexing) then the output bandwidth need be no greater than the maximum bandwidth of any input.
If many inputs may be active simultaneously then the output bandwidth must be at least as great as the total bandwidth of all simultaneously active inputs. In this case the multiplexor is also known as a concentrator.
2. Writing multiple logical copies of data files. Placing the copies on totally separate paths to mirrored devices greatly reduces the probability of all copies being corrupt. Multiplexing differs from mirroring in that mirroring takes one data file and copies it to many devices, thus making it possible to copy a corrupt file many times. Multiplexing writes the data files to many places simultaneously; there is no "original" data file.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences for multiplexing
Describes synchronization and multiplexing of video and audio.
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