duplex

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

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

duplex (not comparable)

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

   duplex telegraphy

• (bidirectional): simplex (unidirectional)

(bidirectional):

• full duplex
• half-duplex
• semiduplex

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 […]

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.

Borrowed from Latin duplex, see above.

• IPA^(key): /dy.plɛks/

duplex m (plural duplex)

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

• duplexer

• “duplex” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Borrowed from Latin duplex.

duplex m (invariable)

1. party line

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

• (Classical) IPA^(key): /ˈdu.pleks/, [ˈdʊ.pɫɛks]

duplex (genitive duplicis); third declension

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

Third declension.

• Sg.Abl. sometimes duplice.

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

• 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, 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