| 单词 | sediment |
| 释义 | sediment (once / 2379 pages) nv Sediment is the accumulation of sand and dirt that settles in the bottom of lakes. Sediment is also what you get in the bottom of a glass of iced tea when the sugar doesn’t all dissolve. The noun sediment comes from the Latin word sedere, meaning “to settle,” or “sit.” Sediment is the little bits of solids that sink to the bottom of a container of liquid, whether that container is a body of water or a holding tank at a sewage treatment plant. Millions of years ago, lakes dried up and glaciers compressed their sediment. In this sedimentary rock, fossils are found, giving us clues about prehistoric life. WORD FAMILYsediment: sedimentary, sedimentation, sedimenting, sediments USAGE EXAMPLESAnd sediment from Mad River was milled into the bar countertop. Washington Times(Jan 01, 2017) For years, the dams starved the area of sediment, so homeowners armored the shoreline with concrete, riprap, and rows of boulders to prevent erosion. The New Yorker(Dec 26, 2016) Before the Champagne is finished, the sediment left by the dead yeast is expelled, or disgorged, from the bottle. New York Times(Dec 15, 2016) 1n matter that has been deposited by some natural process Syn|Hypo|Hyper deposit alluvial deposit, alluvial sediment, alluvion, alluvium clay or silt or gravel carried by rushing streams and deposited where the stream slows down dregs, settlingssediment that has settled at the bottom of a liquid leesthe sediment from fermentation of an alcoholic beverage lick, salt licka salt deposit that animals regularly lick evaporitethe sediment that is left after the evaporation of seawater deltaa low triangular area of alluvial deposits where a river divides before entering a larger body of water groundsdregs consisting of solid particles (especially of coffee) that form a residue placeran alluvial deposit that contains particles of some valuable mineral matter that which has mass and occupies space 2v deposit as a sediment Hyper deposit, fix, posit, situate put (something somewhere) firmly 3v settle as sediment Hyper settle, settle down settle into a position, usually on a surface or ground |
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