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wall off

   Also found in: Dictionary/thesaurus, Idioms 0.01 sec.
wall off [′wȯl ′ȯf]
(engineering)
To seal cracks or crevices in the wall of a borehole with cement, mud cake, compacted cuttings, or casing.


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To get to Jesus' traditional birthplace of Bethlehem, Benedict crossed through the towering concrete slabs of the separation barrier Israel has erected to wall off the West Bank's Palestinian areas.
In signing the order and a second memo designed to wall off scientific research from political influences, Obama said a majority of Americans support lifting the federal funding ban, which would allow researchers to begin using hundreds of already-created embryonic stem cell lines for work on cures for cancer, heart disease, Parkinson's and other illnesses.
 
 
 
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