释义 |
sump I. \ˈsəmp\ noun (-s) Etymology: Middle English sompe, from Middle Dutch somp morass, pool — more at swamp 1. chiefly dialect a. : swamp, morass < sumps of bottomless mud, bordered by patches of coarse swamp grass and standing puddles — H.L.Davis > b. : a pool or puddle especially of dirty water c. : dirt, mud 2. : a round clay-lined pit of stone used in metallurgy for collecting fused metal 3. : a pit, depression, reservoir, or tank serving as a drain or a receptacle for liquids to be salvaged or further disposed of: as a. : cesspool b. : an open drain for carrying off dripping liquids (as in factories) c. : a depression made in a water channel to facilitate the emptying of the channel d. also sump pit : a pit at the lowest point in a circulating or drainage system (as the oil-circulating system of an internal-combustion engine) e. chiefly Britain : oil pan 4. Britain : crankcase 5. [German sumpf, literally, marsh, from Middle High German — more at swamp] a. : the portion of a mine shaft which extends below the working levels and into which the water drains b. : an excavation smaller than and ahead of the regular work in driving a mine tunnel or sinking a mine shaft c. : sumping cut 6. or sump drain : a device by means of which deep body cavities (as the pelvis) are drained of accumulated fluids by suction II. verb (-ed/-ing/-s) transitive verb : to make a sump in; specifically : to depress (the bottom of a channel) intransitive verb : to dig or form a sump; specifically : to make a sumping cut III. noun : sink 2a |