Sump meaning

sŭmp
A hole at the lowest point of a mine shaft into which water is drained in order to be pumped out.
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The crankcase or oil reservoir of an internal-combustion engine.
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A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.
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The lowest part of a mine shaft into which water drains.
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A completely flooded cave passage, sometimes passable by diving.
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(automotive) The crankcase or oil reservoir of an internal combustion engine.
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(nautical) The pit at the lowest point in a circulating or drainage system (FM 55-501).
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(construction) An intentional depression around a drain or scupper that promotes drainage.
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Of a cave passage, to end in a sump, or to fill completely with water on occasion.
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Origin of sump

  • Middle English sompe marsh from Middle Low German sump or from Middle Dutch somp Sense 2, from German Sumpf swamp, sump from Middle High German swamp

    From American Heritage Dictionary of the English Language, 5th Edition