Quadruplex



[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.
/ˈkwɒdrʊˌplɛks; kwɒˈdruːplɛks/
adjective
1.
consisting of four parts; fourfold
2.
denoting a type of television video tape recorder having four transversely rotating heads
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.”

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)

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  • Quadruplicate

    [noun, adjective kwo-droo-pli-kit; verb kwo-droo-pli-keyt] /noun, adjective kwɒˈdru plɪ kɪt; verb kwɒˈdru plɪˌkeɪt/ noun 1. one of four copies or identical items, especially copies of typewritten material. adjective 2. consisting of four identical parts. 3. pertaining to a fourth item or copy of something. verb (used with object), quadruplicated, quadruplicating. 4. to produce or copy […]

  • Quadruplication

    [noun, adjective kwo-droo-pli-kit; verb kwo-droo-pli-keyt] /noun, adjective kwɒˈdru plɪ kɪt; verb kwɒˈdru plɪˌkeɪt/ noun 1. one of four copies or identical items, especially copies of typewritten material. adjective 2. consisting of four identical parts. 3. pertaining to a fourth item or copy of something. verb (used with object), quadruplicated, quadruplicating. 4. to produce or copy […]



  • Quadruply

    [kwo-droo-puh l, -druhp-uh l, kwod-roo-puh l] /kwɒˈdru pəl, -ˈdrʌp əl, ˈkwɒd rʊ pəl/ adjective 1. fourfold; consisting of four parts: a quadruple alliance. 2. four times as great. 3. Music. having four beats to a measure. noun 4. a number, amount, etc., four times as great as another. 5. something, as a series of acrobatic […]

  • Quadruplicity

    [kwod-roo-plis-i-tee] /ˌkwɒd rʊˈplɪs ɪ ti/ noun 1. the state or fact of being quadruple or fourfold. 2. Astrology. the division of the signs of the zodiac into three groups of four signs each, the cardinal signs, the fixed signs, and the mutable signs, with each sign separated from the next nearest within the group by […]



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