An iron-rich lateritic conglomerate formed from the decomposition of underlying rocks by subsurface chemical weathering.
Late 19th century: from Afrikaans, from ou 'old' + klip 'rock, stone'.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。