/ sɪlt; NAmE / noun , verb
■ noun
[ U ] sand, mud, etc. that is carried by flowing water and is left at the mouth of a river or in a harbour
► silty adjective :
silty soils
■ verb
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PHRASAL VERBS
- silt sth up | silt up
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WORD ORIGIN
late Middle English : probably originally denoting a salty deposit and of Scandinavian origin, related to Danish and Norwegian sylt salt marsh, also to salt .