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• a  allowing fluids or gases to pass or diffuse through
  permeable membranes
  rock that is permeable by water

• With so much fish from the region in circulation, with import regulations so easy to skirt, and with the federal government's inspection system so permeable, consumers must be .
• Cultures are both less permeable and more resilient than their defenders usually think.
• There, Zubaydah acted as a kind of semi-permeable membrane, passing on to al-Qaeda volunteers he deemed acceptable.

• impermeable

News & Articles

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• Hebrew University student wins award for research on safer drugs through skin applications
  ( The Hebrew University of Jerusalem ) New, more efficient drug formulations designed to treat illnesses through skin applications -- thus avoiding serious side effects associated with oral drug-taking -- have been developed by a student at the Hebrew University of Jerusalem. The method is based on utilizing skin-permeable proteins that are inserted into nano-structured gels.
  June 11, 2013 - EurekAlert!
• Make a green, cheap patio out of urbanite
  Considering the environmental benefits of permeable paving and the high cost of stone, reusing old slabs is the best way to create a new walk or patio for pennies.
  June 8, 2013 - Seattle Times
• Second Measure M planning meeting comes Saturday
  The second community meeting on Measure M spending will take place Saturday at 10 a.m. at the South Berkeley senior center to seek input from community members on their priorities for street and watershed improvements. Priorities will likely include accelerating the city’s five-year paving plan and focusing on green infrastructure — such as permeable pavers and rain gardens — that relate to ...
  June 6, 2013 - Berkeleyside