detritus
/dɪˈtraɪtəs/noun
mass noun
1- waste or debris of any kind废物; 残骸：
the streets were foul with detritus.
街道上散发出垃圾的腐臭。
1.1
- gravel, sand, silt, or other material produced by erosion（由于侵蚀形成的）沙砾, 沙子, 泥沙等。
1.2
- organic matter produced by the decomposition of organisms（有机物的）腐质。
派生词
detrital
adjective词源
late 18th cent. （in the sense 'detrition'）： from French deétritus, from Latin detritus, from deterere 'wear away'.