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dual

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Merriam-Webster's Collegiate Dictionarydu·al I \ˈdü(-ə)l also ˈdyü-əl\ adjective ETYMOLOGY Latin dualis, from duo two — more at two DATE 15971. of grammatical number : denoting reference to two2. a. consisting of two parts or elements or having two like parts :double b. having a double character or nature• du·al·ly \-ə(l)-lē\ adverb II noun DATE 16501. the dual number of a language2. a linguistic form in the dualEnglish Etymologydual c.1600, from L. dualis, from duo "two." Related: Dually.Oxford Advanced Learner's Dictionary-牛津双解-OALD7dualdual / 5dju:El; NAmE 5du:El / adjective[only before noun] having ten parts or aspects 两部份的；双重的；双的: his dual role as composer and conductor 他兼任作曲家和指挥的双重角色 She has dual nationality (= is a citizen of ten different countries). 她具有双重国籍。 The piece of furniture serves a dual purpose as a cupboard and as a table. 这件家具有两个用途,既作食橱也作饭桌。 ⇨ see also dual-purpose ⇨ note at doubleWebster's Third New International Dictionary, UnabridgedSearch result show the entry is found in: dual-energy x-ray absorptiometry , or dual-purpose fund , or dual unionism , or dual banking , or dual citizenship , or dual highway , or dual ignition , or dual nationality , or dual organization , or dual pay , or dual-purpose , or dual-rotation propeller , or dual uniondu·alI. \ˈd(y)]üəl, ]u̇əl also ]ül\ adjectiveEtymology: Latin dualis, from duo two + -alis -al — more at two1. of an inflectional form or grammatical number : denoting reference to two < Gothic wit “we two” is a first person dual pronoun >— compare plural, quadrual, singular, trial2. a. : consisting of two parts or elements : double, twofold < the dual tones of an American toad's song — W.P.Smith > < that the work of a painter who looks important in England … has stood up to the dual test of international competition and the Adriatic sun — David Sylvester > b. : having two aspects : having a double character or nature < the man had a dual nature, one half positive and passionate to yearning, one half negative, satirical, and really perverse — H.S.Canby > < immigrants, as a rule, retain a dual patriotism — Bertrand Russell > c. : containing two or being one of two often identical parts : twin < high-compression heads complete with a dual exhaust system — Gregor Felsen > d. : consisting of or used on a pair of wheels (as automotive driving wheels) joined together side by side (as by bolting or welding) on a common axle < dual tires >3. : characterized by a division of controlling agents or factors: as a. : consisting of two sets of authorities having mutually exclusive spheres of power < a dual federalism > < a dual form of government > b. : fitted for operation by either or both of two agents < driving lessons given on dual-control cars > < dual-fuel engines that run on oil or oil and gas >II. noun(-s)1. : the dual number of a language or a form in it2. : the result obtained in consequence of interchanging conjunction and alternation throughout a formula in the propositional calculus3. : a chess problem for which two solutions exist4. : a pair of dual wheels or dual tires

Dual Or A Number Consisting Adjective At Parts