duplex

See also: Duplex and dúplex

English

Etymology

Borrowed from Latin duplex (“double, two-fold”), from duo (“two”) + plico (“fold together”); compare πλέκω (plékō, “twist, braid”).

Pronunciation

• enPR: do͞o'plĕks, IPA^(key): /ˈduplɛks/

Adjective

duplex (not comparable)

1. Double, made up of two parts.
2. (telecommunications) Bidirectional (in two directions).

   duplex telegraphy

3. (soil science) Having horizons with contrasting textures.
   • 1977, Australian Journal of Botany (volume 25, page 462)

     Soils are duplex, sandy and solodic. The dominant trees are the stringybark eucalypts […]

Antonyms

• (bidirectional): simplex (unidirectional)

Hyponyms

(bidirectional):

• full duplex
• half-duplex
• semiduplex

Derived terms

• duplexity
• full duplex
• half-duplex
• semiduplex

 

Related terms

• contraplex
• diplex
• duplex escapement
• duplex lathe
• duplex pumping engine
• duplex querela
• duplex watch

 

Translations

double

• Bulgarian: двоен (bg) (dvoen), сдвоен (sdvoen)
• Chinese:

  Mandarin: 雙重的／双重的, 双重的

• (deprecated template usage) {{trans-mid}}
• Esperanto: dupleksa
• Finnish: kaksiosainen (fi)
• Greek: διπλός (el) m (diplós), διμερής (el) m (dimerís)

two direction

• Bulgarian: двупосочен (dvuposočen)
• Chinese:

  Mandarin: 雙向的／双向的, 双向的

• Finnish: kaksisuuntainen (fi)
• (deprecated template usage) {{trans-mid}}
• Greek: αμφίδρομος (el) m (amfídromos)
• Scottish Gaelic: dà-shlighe
• Spanish: dúplex (es) m

Noun

duplex (plural duplexes)

1. (US) A house made up of two dwelling units.
2. (philately) A cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting.
3. (juggling) A throwing motion where two balls are thrown with one hand at the same time.
4. (biochemistry) A double-stranded polynucleotide.
5. (geology) A system of multiple thrust faults bounded above and below by a roof thrust and floor thrust.
   • 1993, David J. Lidke, ‎Jack Burton Epstein, ‎Chester A. Wallace, U.S. Geological Survey Bulletin (page 16)

     In contrast, the folds in the overlying lithotectonic unit 4 are larger and are cut by a series of faults in a duplex.

   • 1995, Robert D. Hatcher, Structural Geology: Principles, Concepts, and Problems (page 211)

     It has been noted, using a combination of surface geologic and seismic reflection data, that a duplex, although formed in response to movement of a thrust sheet, frequently arches the thrust sheet as the duplex is built by duplication of rocks beneath it […]

Related terms

Related terms

• diplex
• 2-plex

• oligoduplex
• quadruplex
• triplex

Translations

house

• Finnish: paritalo (fi)
• French: duplex (fr) m
• Georgian: დუპლექსი (duṗleksi)
• German: Doppelhaus (de) n
• (deprecated template usage) {{trans-mid}}
• Italian: bifamiliare (it) f
• Spanish: dúplex (es) m

(philately) cancellation

• French: flamme postale (fr) f, flamme (fr) f
• (deprecated template usage) {{trans-mid}}

(juggling) throwing motion

• French: duplex (fr) m
• (deprecated template usage) {{trans-mid}}

See also

• bungalow
• maisonette
• semi-detached

• townhouse
• rowhouse

Verb

1. To make duplex.
2. To make into a duplex.
3. (juggling) To make a series of duplex throws.

Related terms

terms related to duplex

• double
• duplicity
• multiplex

• quadruplex
• simplex
• single
• triple
• triplex

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French

Etymology

Borrowed from Latin duplex, see above.

Pronunciation

• IPA^(key): /dy.plɛks/

Noun

duplex m (plural duplex)

1. a link between two points, such as a cable or a wire
2. duplex, maisonette (dwelling)

Derived terms

• duplexer

Further reading

• “duplex”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

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Italian

Etymology

Borrowed from Latin duplex.

Noun

duplex m (uncountable)

1. party line

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Latin

Etymology

Formed from duo (“two”) and plec-, from the root of plicō (“fold”); cf. also plectō, plexum.

Pronunciation

• (Classical Latin) IPA^(key): /ˈdu.pleks/, [ˈd̪ʊpɫ̪ɛks̠]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈdu.pleks/, [ˈd̪uːpleks]

Adjective

duplex (genitive duplicis, adverb dupliciter); third-declension one-termination adjective

1. twofold, double
2. bipartite, cloven
3. ambiguous

Declension

Third-declension one-termination adjective.

Number	Singular			Plural
Case / Gender	Masc./Fem.	Neuter		Masc./Fem.	Neuter
Nominative	duplex			duplicēs	duplicia
Genitive	duplicis			duplicium
Dative	duplicī			duplicibus
Accusative	duplicem	duplex		duplicēs	duplicia
Ablative	duplicī			duplicibus
Vocative	duplex			duplicēs	duplicia

• Sg.Abl. sometimes duplice.

Descendants

• English: duplex
• French: duplex
• Galician: dobre (possibly)
• Italian: duplice, duplex
• Spanish: doble (possibly), dúplex

References

• “duplex”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “duplex”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• duplex in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• duplex in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• Carl Meißner, Henry William Auden (1894) Latin Phrase-Book‎^[1], London: Macmillan and Co.
  • a twofold tradition prevails on this subject: duplex est memoria de aliqua re
    
  • in two, three columns: agmine duplici, triplici