柯林斯詞典clastic /?kl?st?k/ 1. ADJ (of sedimentary rock, etc) composed of fragments of pre-existing rock that have been transported some distance from their points of origin (沉積巖等)碎屑組成的 返回 clastic劍橋詞典used to refer to a type of rock consisting of broken pieces of other rock （巖石）碎屑的 返回 clastic