音标：[æ'kri:ʃәn]
n. 自然增大, 添加, 添加物, 连生
【化】 停滞堆积
【医】 增积, 增加; 粘连; 增积物
【经】 增值, 价值附加
英汉词典

accretion的短语、例句：

accretion n 1 [U] (a) growth or increase by means of gradual additions （逐渐地）生长, 增大. (b) the growing of separate things into one 连生; 合生. 2 [C] (a) added matter that causes such growth 增添物. (b) thing formed by the addition of such matter 积累而成的东西
a chimney blocked by an accretion of soot 被聚积的煤烟子所堵塞的烟囱.