英语词汇“retention”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	retention
释义	re·ten·tion \rə̇ˈtenchən, rēˈ-\ noun (-s) Etymology: Middle English retencioun, from Latin retention-, retentio, from retentus (past participle of retinēre to retain) + -ion-, -io -ion — more at retain 1. a. : the act of retaining or state of being retained b. : continuance in use (as of a name or custom) < specific African cultures came to predominate, and recognizable retentions of these customs are present — M.J.Herskovits > c. : abnormal retaining in a canal, reservoir, or tissue of the body of a fluid or secretion which is to be voided < retention of urine > < retention of bile > d. (1) : a retaining or an ability to retain things in mind : memory < recall, recognition, and relearning are the three experimental tests of retention — R.S.Woodworth > (2) : the preservation of aftereffects of experience and learning so that recall or recognition is possible or that relearning is easier than the learning of new material e. : a keeping in one's own possession or control < the retention by the railways of about 3,500 trucks — Alzada Comstock > < her retention of the world figure skating title — Current Biography > < the retention of part of the medical personnel taken prisoner — J.S.Pictet > f. (1) : a retaining or holding fixed in some place, position, or condition < retention is the fixation of a removable partial denture in the mouth in such a manner that … it may be inserted and retained with sufficient firmness — Review of Dentistry > (2) : state of being kept in place 2. : power or capacity of retaining : retentiveness < shape, crease, and pleat-retention are not obtainable with any of the natural fibers — J.B.Goldberg > < good initial color and color retention, are properties that can be attained by alkyds — H.E.Hillman > 3. : something that is retained < the amount of precipitation that falls on an area but does not run off is the retention > 4. : a possessory lien 5. : the portion of the insurance on a particular risk not reinsured or ceded by the originating insurer
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