quadruplex

American  

[kwod-roo-pleks, kwo-droo-pleks] / ˈkwɒd rʊˌplɛks, kwɒˈdru plɛks /

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.

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quadruplex British  

/ ˈkwɒdrʊˌplɛks, ˌkwɒdrʊˈplɪsɪtɪ, kwɒˈdruːplɛks /

adjective

1. consisting of four parts; fourfold

2. denoting a type of television video tape recorder having four transversely rotating heads

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Other Word Forms

• quadruplicity noun

Etymology

Origin of quadruplex

From Latin, dating back to 1870–75; quadru-, -plex

Example Sentences

The day of the shooting, Lorincz told investigators she had a headache and that “neighbors were outside screaming and yelling, kids were running around” in a grassy area separating two apartment quadruplex buildings, including hers.

From Seattle Times

His first major invention, a quadruplex telegraph that allowed stations to send and receive messages simultaneously over the same wires, earned a handsome profit.

From New York Times

Edison’s first lucrative products were a stock-ticker device and a quadruplex telegraph, capable of sending four messages at once.

From The New Yorker

As an adult, he fixed quadruplex videotape machines — an early commercial videotape format — in his basement, and founded a multimillion-dollar video company.

From Washington Post

Drive, the quadruplex apartment has few walls inside; instead, variable floor heights produce 27 interior levels that encourage visitors to preen and goggle.

From New York Times