Definition of silt
(Entry 1 of 2)
1
: loose sedimentary material with rock particles usually ¹/₂₀ millimeter or less in diameter
also
: soil containing 80 percent or more of such silt and less than 12 percent of clay
2
: a deposit of sediment (as by a river)
silt
verb
silted; silting; silts
Definition of silt (Entry 2 of 2)
: to become choked or obstructed with silt
—often used with up the channel silted up
: to choke, fill, cover, or obstruct with silt or mud
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Merriam-Webster unabridged
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Time Traveler for silt
The first known use of silt was in the 15th century
See more words from the same century