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Webster 1913 Edition

Duplex

‖

Du′plex

,
Adj.
[L., fr.
duo
two +
plicare
to fold. See
Two
, and
Complex
.]
1.
Double; twofold.
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
[L., double complaint]
(Eccl. Law)
,
a complaint in the nature of an appeal from the ordinary to his immediate superior, as from a bishop to an archbishop.
Mozley & W.
–
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)
.

Definition 2024

duplex

duplex

See also: dúplex

English

Adjective

duplex ‎(not comparable)

  1. double, made up of two parts
  2. (telecommunications) bidirectional (in two directions)
    duplex telegraphy

Hyponyms

(bidirectional):

Antonyms

  • (bidirectional): simplex (unidirectional)

Derived terms

Translations

Noun

duplex ‎(plural duplexes)

  1. (US) 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) throwing motion where two balls are thrown with one hand at the same time.

Related terms

See also

Translations

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

French

Etymology

Borrowing 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 (dwelling)

Derived terms

Italian

Etymology

Borrowing from Latin duplex.

Noun

duplex m ‎(invariable)

  1. party line

Latin

Etymology

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

Pronunciation

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

Adjective

duplex m, f, n ‎(genitive duplicis); third declension

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

Inflection

Third declension.

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

Descendants

References

Etymology

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

Pronunciation

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

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