[mass noun]the action or process of distributing or spreading things or people over a wide area 分散,分布 the dispersal of people to increasingly distant suburbs. 人口向越来越远的郊区分散。 [count noun]dispersals of archaic populations. 古代人口的分布。 ■the splitting up of a group or gathering of people, causing them to leave in different directions 疏散 the dispersal of the crowd by mounted police. 骑警对人群的疏散。 ■the splitting up and selling off of a collection of artefacts or books (成套工艺品或书籍的)零卖,贱卖 the dispersal of the John Willett Collection. 《约翰•威利特全集》的零卖。 [count noun]colleges had made large dispersals, and the shops were filled with books from their stacks. 大学在大清仓,店里堆满了他们的书。