ac·cre·tion
noun/əˈkriːʃn/
/əˈkriːʃn/
(specialist or formal)- [countable] a layer of a substance or a piece of matter that is slowly added to something
积聚层；堆积层 - [uncountable] the process of new layers or matter being slowly added to something
堆积，积聚（过程） - the accretion of sand by wind action
风作用引起的沙子堆积
- the accretion of sand by wind action
Word Originearly 17th cent.: from Latin accretio(n-), from accrescere ‘become larger’, from ad- ‘to’ + crescere ‘grow’.