柯林斯詞典autochthonous /???t?k?θ?n?k/ (also autochthonic or autochthonal) 1. ADJ (of rocks, deposits, etc) found where they and their constituents were formed (巖石、礦石等)原地發(fā)現(xiàn)的→compare allochthonous 返回 autochthonous