duplex

duplex

See also: Duplex and dúplex

English

Etymology

PIE word
*dwóh₁

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

Pronunciation

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

• Audio (UK)

  (file)

• Rhymes: -uplɛks

Adjective

duplex (not comparable)

1. Double, made up of two parts.
   1. (architecture) Having two floors
   2. (architecture) Having two units, divisions, suites, apartments
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
• duplex nail
• 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 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 Finnish: kaksisuuntainen (fi) Greek: αμφίδρομος (el) m (amfídromos) Scottish Gaelic: dà-shlighe Spanish: dúplex (es) m

Noun

A duplex in Bowling Green, Ohio, USA

duplex (plural duplexes)

1. (US, Canada) A house made up of two dwelling units.
   • 2020, Akwaeke Emezi, The Death of Vivek Oji, Faber & Faber Ltd, page 53:

     The house had been renovated into a duplex and he’d put in a phone line.

2. (US) A dwelling unit with two floors
3. (philately) A cancellation combining a numerical cancellation with a second mark showing time, date, and place of posting.
4. (juggling) A throwing motion where two balls are thrown with one hand at the same time.
5. (biochemistry) A double-stranded polynucleotide.
6. (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 Italian: bifamiliare (it) f Norwegian: Bokmål: tomannsbolig (no) Nynorsk: tomannsbustad Polish: bliźniak (pl) m Spanish: dúplex (es) m Swedish: parhus (sv) n; etagevåning c

(philately) cancellation

French: flamme postale (fr) f, flamme (fr) f

(juggling) throwing motion

French: duplex (fr) m

See also

• bungalow
• maisonette
• semi-detached
• townhouse
• rowhouse

Verb

duplex (third-person singular simple present duplexes, present participle duplexing, simple past and past participle duplexed)

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/

• Audio

  (file)

• Audio (CAN)

  (file)

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

Unadapted borrowing from Latin duplex.

Noun

duplex m (invariable)

1. (telecommunications) duplex (communications link allowing simultaneous sending and receiving)
2. (telephony) party line
3. (telephony) telephone or telephone user on a party line
4. (metallurgy) duplex process (for refining steel)
5. (architecture) two-story residence with separated living and sleeping areas
6. (typography) duplex matrix (matrix bearing two signs next to each other)

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Latin

Latin numbers ^(edit)

[a], [b] ←  1	II 2	3  → [a], [b]
Cardinal: duo     Ordinal: secundus     Adverbial: bis     Multiplier: duplex, duplus     Distributive: bīnī     Fractional: dīmidius, sēmis

Etymology

From Proto-Italic *dwipleks, formed from duo (“two”) and plec-, from the root of plicō (“fold”); cf. also plectō, plexum.

Pronunciation

• (Classical) IPA^(key): /ˈdu.pleks/, [ˈd̪ʊpɫ̪ɛks̠] or IPA^(key): /ˈdup.leks/, [ˈd̪ʊpɫ̪ɛks̠]
• (Ecclesiastical) IPA^(key): /ˈdu.pleks/, [ˈd̪uːpleks] or IPA^(key): /ˈdup.leks/, [ˈd̪upleks]

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

• Galician: dobre (possibly)
• Spanish: doble (possibly)
• → English: duplex
• → French: duplex
• → Italian: duplice, duplex
• → Spanish: 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, London: Macmillan and Co.
  • a twofold tradition prevails on this subject: duplex est memoria de aliqua re
    
  • in two, three columns: agmine duplici, triplici
    

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Romanian

Etymology

From French duplex.

Noun

duplex n (plural duplexuri)

1. duplex

Declension

Declension of duplex

	singular		plural
	indefinite articulation	definite articulation	indefinite articulation	definite articulation
nominative/accusative	(un) duplex	duplexul	(niște) duplexuri	duplexurile
genitive/dative	(unui) duplex	duplexului	(unor) duplexuri	duplexurilor
vocative	duplexule		duplexurilor