Try Our Apps


Blech. These are the grossest words.


[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
1550-60; < Latin; see multi-, -plex
Related forms
multiplexer, multiplexor, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
British Dictionary definitions for multiplexing


  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
Cite This Source
Word Origin and History for multiplexing


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
Cite This Source
multiplexing in Technology

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
Cite This Source

Word of the Day

Difficulty index for multiplex

Some English speakers likely know this word

Word Value for multiplexing

Scrabble Words With Friends

Nearby words for multiplexing