柯林斯詞典accretion /??kri???n/ (accretions) 1. N-COUNT An accretion is an addition to something, usually one that has been added over a period of time. 累加物[正式] The script has been gathering editorial accretions for years. 該劇本經(jīng)歷了多年的脩改加工。2. N-UNCOUNT Accretion is the process of new layers or parts being added to something so that it increases in size. 累積[正式] A coral reef is built by the accretion of tiny, identical organisms. 珊瑚礁是由相同的微生物累積形成的。 返回 accretion劍橋詞典a gradual increase or growth by the addition of new layers or parts 堆積，積聚；逐漸的增加，增大 The fund was increased by the accretion of new shareholders . 由於新股東的逐漸加入，資金增加了。 The room hadn't been cleaned for years and showed several accretions of dirt and dust . 房間多年沒有打掃，積了厚厚的灰塵。 返回 accretion