Word Study
duplex
OXFORD DICTIONARY
duplex, n. & adj.
--n. esp. US 1 a flat or maisonette on two levels.
2 a house subdivided for two families.
--adj.
1 having two elements; twofold.
2 esp. US a (of a flat) two-storeyed. b (of a house) for two families.
3 Computing (of a circuit) allowing the transmission of signals in both directions simultaneously (opp. SIMPLEX).
--n. esp. US 1 a flat or maisonette on two levels.
2 a house subdivided for two families.
--adj.
1 having two elements; twofold.
2 esp. US a (of a flat) two-storeyed. b (of a house) for two families.
3 Computing (of a circuit) allowing the transmission of signals in both directions simultaneously (opp. SIMPLEX).
Idiom
half-duplex Computing (of a circuit) allowing the transmission of signals in both directions but not simultaneously.
Etymology
L duplex duplicis f. duo two + plic- fold
THESAURUS
duplex
Janus-like, ambidextrous, apartment house, bifacial, bifold, biform, bifurcated, bilateral, binary, binate, biparous, bipartisan, bipartite, bivalent, condominium, conduplicate, cooperative apartment house, dichotomous, disomatous, double, double-barreled, double-faced, duadic, dual, dualistic, duple, duplex house, duplicate, duplicated, dyadic, flats, geminate, geminated, high-rise apartment building, identical, matched, second, secondary, tenement, twain, twin, twinned, two, two-faced, two-level, two-ply, two-sided, two-story, twofoldROGET THESAURUS
duplex
Duality
N duality, dualism, duplicity, biplicity, biformity, polarity, two, deuce, couple, duet, brace, pair, cheeks, twins, Castor and Pollux, gemini, Siamese twins, fellows, yoke, conjugation, dispermy, doublets, dyad, span, two, twin, dual, dualistic, double, binary, binomial, twin, biparous, dyadic, conduplicate, duplex, biduous, binate, diphyletic, dispermic, unijugate, tete-a-tete, coupled, conjugate, both, both the one and the other.Duplication
N duplication, doubling, gemination, ingemination, reduplication, iteration, renewal, double, doubled, bicipital, bicephalous, bidental, bilabiate, bivalve, bivalvular, bifold, biform, bilateral, bifarious, bifacial, twofold, two-sided, disomatous, duplex, double-faced, double-headed, twin, duplicate, ingeminate, second, twice, once more, over again, as much again, twofold, secondly, in the second place, again.Luminary
N luminary, light, flame, spark, scintilla, phosphorescence, fluorescence, sun, orb of day, Phoebus, Apollo, Aurora, star, orb, meteor, falling star, shooting star, blazing star, dog star, Sirius, canicula, Aldebaran, constellation, galaxy, zodiacal light, anthelion, day star, morning star, Lucifer, mock sun, parhelion, phosphor, phosphorus, sun dog, Venus, aurora, polar lights, northern lights, aurora borealis, southern lights, aurora australis, lightning, chain lightning, fork lightning, sheet lightning, summer lightning, ball lightning, kugelblitz, phosphorus, yellow phosphorus, scintillator, phosphor, firefly luminescence, ignis fatuus, Jack o'lantern, Friar's lantern, will-o'-the- wisp, firedrake, Fata Morgana, Saint Elmo's fire, glowworm, firefly, June bug, lightning bug, anglerfish, gas, gas light, lime light, lantern, lanthorn, dark lantern, bull's-eye, candle, bougie, taper, rushlight, oil, wick, burner, Argand, moderator, duplex, torch, flambeau, link, brand, gaselier, chandelier, electrolier, candelabrum, candelabra, girandole, sconce, luster, candlestick, lamp, light, incandescent lamp, tungsten bulb, light bulb, flashlight, torch, arc light, laser, maser neon bulb, neon sign, fluorescent lamp, filament, socket, contacts, filler gas, firework, fizgig, pyrotechnics, rocket, lighthouse, self-luminous, glowing, phosphoric, phosphorescent, fluorescent, incandescent, luminescent, chemiluminescent, radiant, blossomed the lovely stars, the forget-me-nots of the angels, the sentinel stars set their watch in the sky, the planets in their station list'ning stood, the Scriptures of the skies, that orbed continent, the fire that severs day from night.For further exploring for "duplex" in Webster Dictionary Online