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Merriam-Webster's Collegiate Dictionary du·ra·tion DATE 14th century 1. continuance in time 2. the time during which something exists or lasts English Etymology duration late 14c., from O.Fr . duration, from M.L. durationem (nom.duratio), from L. durare "harden" (see endure). Phrase for the duration (1916) originally refers to British enlistment in World War I.http://O.Fr Oxford Advanced Learner's Dictionary-牛津双解-OALD7 duration dur·ation / dju5reiFn; NAmE du- / noun[U] (formal) the length of time that sth lasts or continues 持续时间；期间: The school was used as a hospital for the duration of the war. 战争期间这所学校用作医院。 a contract of seven years' duration 三年期的合同 IDIOMS ▪ for the duration (informal) until the end of a particular situation 直到…结束；在整个…期间 Oxford Collocations Dictionary for Students of English duration noun ADJ. brief, short | long | indefinite | maximum | overall, total We took four trains, and the overall duration of the journey was 72 hours. | average, expected, likely the expected duration of the disease PREP. for the ~ (of) She stayed there for the duration of the journey. | of … ~ The next contract will be of shorter duration. | throughout the ~ of This continued throughout the duration of their marriage. Webster's Third New International Dictionary, Unabridged Search result show the entry is found in: pulse duration modulation du·ra·tion \d(y)əˈrāshən, -)u̇ˈ-\ noun (-s) Etymology: Medieval Latin duration-, duratio, from Latin duratus (past participle of durare to last) + -ion-, -io -ion — more at dure 1. : the quality or state of lasting for a period of time : continuation in time or existence : lastingness < a play of short duration > 2. : a portion of time which is measurable or during which something exists, lasts, or is in progress < gave up all worries for the duration of the holiday > < the duration of a meal > < the duration of life > < the duration of the world > < the duration of the play > specifically : the period of time during which something that almost totally obstructs or prevents normal activities (as a war) or that engages virtually all one's efforts or attention is in progress — used with the < universities had to be persuaded to scrap their scientific and educational responsibilities for the duration and take on war work — J.B.Conant > < once you were in the theater, and the lights were dimmed, you were there for the duration — Burns Mantle > 3. obsolete : durableness or endurance in use • du·ra·tion·al \-shənəl, -shnəl\ adjective • du·ra·tion·al·ly \-ē\ adverb |
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