dispersion

dispersion
noun
[mass noun]
  1. the action or process of distributing or spreading things or people over a wide area
    分散;散布
    some seeds rely on birds for dispersion.
    有些种子靠鸟来传播。
    ■the state of being dispersed over a wide area
    分布;散布
    the study looks at the dispersion of earnings with OECD member countries.
    该研究着眼于经合组织成员国的收入分布。
    ■(Ecology)the pattern of distribution of individuals within a habitat
    (生态)分布
    ■(亦作 the Dispersion). another term for diaspora
    同 diaspora
    ■[count noun]a mixture of one substance dispersed in another medium
    弥散,扩散
    the virus is transmitted in the dispersion of droplets which results from sneezing or coughing.
    病毒就是通过打喷嚏或咳嗽形成的飞沫传播的。
    ■(Physics)the separation of white light into colours or of any radiation according to wavelength
    (物理)色散;频散;弥散
    ■(Statistics)the extent to which values of a variable differ from a fixed value such as the mean
    (统计)离中趋势,离散度,离差
语源
  1. late Middle English: from late Latin dispersio(n-), from Latin dispergere (see disperse)
英语宝典
考试词汇表