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Duplex   /dˈuplˌɛks/   Listen
adjective
Duplex  adj.  
1.
Double; twofold.
2.
(Computers) Organized so that data may be transmitted in two opposite directions over the same channel; of communications channels, such as data transfer lines between computers.
Duplex escapement, a peculiar kind of watch escapement, in which the scape-wheel has two sets of teeth. See Escapement.
Duplex lathe, one for turning off, screwing, and surfacing, by means of two cutting tools, on opposite sides of the piece operated upon.
Duplex pumping engine, a steam pump in which two steam cylinders are placed side by side, one operating the valves of the other.
Duplex querela (Eccl. Law), a complaint in the nature of an appeal from the ordinary to his immediate superior, as from a bishop to an archbishop.
Duplex telegraphy, a system of telegraphy for sending two messages over the same wire simultaneously.
Duplex watch, one with a duplex escapement.
half duplex (Computers)
(a)
arranged so that the information may be transmitted in both directions, but only in one direction at a time; of communications channels between computers; contrasted with full duplex(a).
(b)
arranged so that the information transmitted to the remote computer also appears on the local terminal; of communications channels between computers; contrasted with full duplex(b).
full duplex, (Computers)
(a)
arranged so that the information may be transmitted in both directions simultaneously; of communications channels between computers; contrasted with half duplex(a).
(b)
arranged so that the information transmitted to the remote computer does not appear on the local terminal; of communications channels between computers; contrasted with half duplex(b).


noun
duplex  n.  
1.
Something which is duplex; used mostly in reference to a living unit, such as an apartment, in a building having two similar living units.
2.
(Biology, Genetics) A double-stranded region in a nucleic acid molecule. See deoxyribonucleic acid.


verb
Duplex  v. t.  (Teleg.) To arrange, as a telegraph line, so that two messages may be transmitted simultaneously; to equip with a duplex telegraphic outfit.





Collaborative International Dictionary of English 0.48


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"Duplex" Quotes from Famous Books



... There are two centrifugal pumps, each worked by a separate engine for circulating water through the condenser, and these are so arranged that they can be connected to the bilges in the event of an accident to the ship. In the engine room there is fitted an auxiliary feed donkey of the duplex type and made by the ...
— Scientific American Supplement No. 819 - Volume XXXII, Number 819. Issue Date September 12, 1891 • Various
... job waiting for me if I could come at once, I pulled up stakes in New York, and sailed away on the Mallory Line ship "Comal," for my old stamping ground. I reached there the next week and was put to work on the New York Duplex, which, by the way, was the longest string in the United States. Mrs. Swanson had re-opened her boarding house on Avenue M, everything looked lovely and I anticipated a very pleasant winter. Up to September 18th, everything ...
— Danger Signals • John A. Hill and Jasper Ewing Brady
... complete codegraph outfit, as shown in the cut, has three main parts: (1) The "plate and pen," (2) some form of "key and sounder" and (3) two batteries. While any key and sounder can be used with the plate, we wish to call especial attention to the duplex sounder shown, as this has been designed to do double work. If you already have "Fun with Telegraphy," for example, and want to order the "Codegraph Plate and Pen," we will include, free of charge, an extra attachment for connecting ...
— How Two Boys Made Their Own Electrical Apparatus • Thomas M. (Thomas Matthew) St. John
... {rakhis ge men}. See Virg. "Georg." iii. 87, "at duplex agitur per lumbos spina." "In a horse that is in good case, the back is broad, and the spine does not stick up like a ridge, but forms a kind of furrow on the back" (John Martyn); "a full back," ...
— On Horsemanship • Xenophon
... DUPLEX COMMUNICATION.—A wireless telephone system with which it is possible to talk between both stations in either direction without the use of switches. This is known as the ...
— The Radio Amateur's Hand Book • A. Frederick Collins


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