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TOEFL BNC: 3745 COCA: 4513

density

noun
 
/ˈdensəti/
/ˈdensəti/
(plural densities)
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  1.  
    [uncountable] the quality of being dense; the degree to which something is dense密集；稠密；密度；浓度
    • The population density in this city is very high.这座城市的人口密度很高。
    • low density forest低密度森林
    • an average density of 2.4 people per hectare每公顷 2.4 人的平均密度
    Oxford Collocations Dictionaryadjective
    • high
    • low
    • average
    • …
    verb + density
    • calculate
    • determine
    • estimate
    • …
    density + verb
    • change
    • vary
    • increase
    • …
    See full entry
  2. [countable, uncountable] (physics物理) how thick a solid, liquid or gas is, measured by its mass per unit of volume密度（固体、液体或气体单位体积的质量）
    • the density of a gas一种气体的密度
    see also relative density
    Extra Examples
    • similar stars of the same mass and density质量和密度相同的类似恒星
    • Vitamin D deficiency causes a loss of bone density.缺乏维生素D会导致骨密度下降。
    Topics Physics and chemistryc1
    Oxford Collocations Dictionaryadjective
    • high
    • low
    • average
    • …
    verb + density
    • calculate
    • determine
    • estimate
    • …
    density + verb
    • change
    • vary
    • increase
    • …
    See full entry
  3. [uncountable] (computing计算机) the amount of space available on a disk for recording data密度（磁盘存储数据的可用空间） see also packing density
    4. Word Originearly 17th cent.: from French densité or Latin densitas, from densus ‘dense’.

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