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Merriam-Webster's Collegiate Dictionary frac·tion ETYMOLOGY Middle English fraccioun, from Late Latin fraction-, fractio act of breaking, from Latin frangere to break — more at break DATE 14th century 1. a. a numerical representation (as 3/4, 5/8, or 3.234) indicating the quotient of two numbers b. (1) a piece broken off : fragment (2) a discrete unit : portion 2. one of several portions (as of a distillate) separable by fractionation 3. bit , little a fraction closer English Etymology fraction late 14c., from L.L. fractionem (nom. fractio) "a breaking," especially into pieces, from root of L. frangere (pt. fregi) "to break," from PIE base *bhr(e)g- (cf. Skt. (giri)-bhraj "breaking-forth (out of the mountains);" Goth. brikan, O.E. brecan "to break;" Lith. brasketi "crash, crack;" O.Ir . braigim "break" wind). Mathematical sense was the original one in English. Sense of "broken off piece, fragment," is from c.1600.http://O.Ir Oxford Advanced Learner's Dictionary-牛津双解-OALD7 fraction frac·tion / 5frAkFn / noun1. a small part or amount of sth 小部份;少量;一点儿: Only a small fraction of a bank's total deposits will be withdrawn at any six time. 任何时候,一家银行的总存款只有少量会被提取。 She hesitated for the merest fraction of a second. 她略微犹豫了一下。 HELP If fraction is used with a plural noun, the verb is usually plural: Only a fraction of cars in the UK use leaded petrol. 如 fraction 与复数名词连用,则动词用复数 : Only a fraction of cars in the UK use leaded petrol. If it is used with a singular noun that represents a group of people, the verb can be singular or plural in BrE, but is usually singular in NAmE : A tiny fraction of the population never vote / votes. 如与表示一群人的单数名词连用,在英国英语中动词用单复数均可,但在北美英语中动词通常用单数 : A tiny fraction of the population never vote / votes. 2. a division of a number, for example 5 / 8 分数;小数 ⇨ see also vulgar fraction —compare integer Oxford Collocations Dictionary for Students of English fraction noun 1 part/amount ADJ. large, significant, sizeable, substantial | mere, small, tiny A mere fraction of available wind energy is currently utilized. PREP. ~ of Why not grow your own fruit at a fraction of the price? PHRASES just/only a fraction The average income is high, though many people earn just a fraction of that average. 2 exact part of a number ADJ. vulgar | decimal | improper 11/8 is an improper fraction, equivalent to one and three-eighths. VERB + FRACTION express sth as Express 25% as a fraction. Webster's Third New International Dictionary, Unabridged Search result show the entry is found in: mole fraction , or packing fraction , or partial fraction , or piece fraction , or proper fraction , or rational fraction , or representative fraction , or sexagesimal fraction , or simple fraction , or split fraction , or unit fraction , or vulgar fraction , or wetness fraction , or built-up fraction , or common fraction , or complex fraction , or compound fraction , or continued fraction , or decimal fraction , or diagonal fraction , or improper fraction frac·tion I. \ˈfrakshən\ noun (-s) Etymology: Middle English fraccioun, from Late Latin fraction-, fractio action of breaking, from Latin fractus (past participle of frangere to break) + -ion, -io -ion — more at break 1. : a part of a whole: as a. : the indicated quotient of one expression divided by another — see number table b. (1) : a piece broken off : fragment , scrap (2) : a discrete unit : portion , section < a minute fraction of the voters > c. : a part less than a point in a security quotation < the price of United States steel declined a fraction > 2. archaic a. : a rupture in relations : discord , dissension , disharmony b. : a breach of peace : fracas , ruction 3. a. : a breaking up : breaking ; specifically often capitalized : the breaking of the bread by the priest before the communion in Eastern and Western Christian liturgies b. obsolete : a broken place : fracture , rupture , breach , break 4. : little , bit < a fraction closer > 5. : one of several portions (as of a distillate or precipitate) separable by fractionation and consisting either of mixtures or of pure chemical compounds : cut < petroleum fractions > < gamma globulin is a fraction of blood plasma > 6. : a type character representing a mathematical fraction — see piece fraction 7. : a group of Communists who work for reform within a non-Communist organization — compare cell 9Synonyms: see part II. transitive verb (-ed/-ing/-s) : to separate or divide into portions, separable units, or discrete components; specifically : fractionate 1 |
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