quadruplex [ kwod-r oo-pleks, kwo- droo-pleks] EXAMPLES | WORD ORIGIN adjective fourfold; quadruple. noting or pertaining to a system of telegraphy by which four messages may be transmitted simultaneously over one wire or communications channel. Origin of quadruplex
dating back to
see origin at
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for quadruplex Historical Examples of quadruplex
A general knowledge of the principles of
quadruplex and multiplex working.
quadruplex system was invented by Edison in 1874, and in four years it saved more than half a million dollars.
The next step was a
quadruplex system, by means of which four messages may be transmitted over one wire at the same time. Quadruplex telegraph, sending four messages over one wire at the same time—Edison, 1873.
quadruplex has not as a rule the same working efficiency that four separate wires have. British Dictionary definitions for quadruplex adjective consisting of four parts; fourfold denoting a type of television video tape recorder having four transversely rotating heads Derived Forms quadruplicity ( ˌkwɒdrʊˈplɪsɪtɪ), noun Word Origin for quadruplex
C19: from Latin, from
quadru- (see quadri-) + -plex -fold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for quadruplex adj.
1875, in reference to telegraph systems in which four messages can be wired simultaneously, from
quadru- + plex. In classical Latin, quadruplex meant "fourfold, quadruple," as a noun, "a fourfold amount."
Online Etymology Dictionary, © 2010 Douglas Harper