soil made chiefly of loose sedimentary material that is carried by flowing water and that sinks to the bottom of a river, pond, etc.
alluvium, colluvium, detritus, loess, marl, sediment, shingleclod, dirt, earth, ground, moldblackland, clay, gault(chiefly British), gley, guck(or gook), gumbo, kaolin, muck, muddust, gravel, sandhumus, loam, topsoilduff, mullsubsoil, substratum
in the 15th century
英语同义词词典收录了63618条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。