well point

wellpoint

[wel-point]
noun Engineering, Building Trades.
a perforated tube driven into the ground to collect water from the surrounding area so that it can be pumped away, as to prevent an excavation from filling with ground water.

Origin:
1940–45; well2 + point

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
well point

noun
a perforated tube driven into the ground to collect water from the surrounding area 
wellpoint

noun
a perforated tube driven into the ground to collect water from the surrounding area [syn: well point
WordNet® 3.0, © 2006 by Princeton University.
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