1)sediment　　/ ˈsedɪmənt; ˋsɛdəmənt/ n [U]
    matter that settles to the bottom of a liquid 沉淀物: a wine with a gritty sediment 有沙粒狀沉淀物的葡萄酒.
    matter (eg sand, gravel, mud, etc) carried by water or wind and deposited on the surface of the land 沉積物(如沙﹑ 礫石﹑ 泥等).
    2)sedimentary / ˏsedɪˈmentrɪ; ˏsɛdəˋmɛntərɪ/ adj
    of or like sediment; formed from sediment (似)沉淀物的; 由沉淀物形成的: sedimentary rocks, eg sandstone, limestone, slate 沉積巖(如砂巖﹑ 石灰?guī)r﹑ 板巖).
    3)sedimentation / ˏsedɪmenˈteɪʃn; ˏsɛdəmɛnˋteʃən/ n [U]
    (geology 地質(zhì)) process of depositing sediment 沉淀; 沉積.