quadruplex

[kwod-roo-pleks, kwo-droo-pleks]
adjective
1.
fourfold; quadruple.
2.
noting or pertaining to a system of telegraphy by which four messages may be transmitted simultaneously over one wire or communications channel.

Origin:
1870–75; < Latin; see quadru-, -plex

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World English Dictionary
quadruplex (ˈkwɒdrʊˌplɛks, kwɒˈdruːplɛks)
 
adj
1.  consisting of four parts; fourfold
2.  denoting a type of television video tape recorder having four transversely rotating heads
 
[C19: from Latin, from quadru- (see quadri-) + -plex -fold]
 
quadruplicity
 
n

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Computing Dictionary

quadruplex definition

communications
A kind of telegraphy system developed by Thomas A. Edison in the 1870s combining diplex and duplex communications to support simultaneous transmission of two messages in each direction.
(2000-04-02)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Rooms are clustered in quadruplex configurations and have tile floors, high slanted ceilings, and white rattan furnishings.
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