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Definition of "permeability" [per•me•a•bil•i•ty]

  • The property or condition of being permeable. (noun)
  • The rate of flow of a liquid or gas through a porous material. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "permeability" in a sentence
  • "The material-specific conductivity for the magnetic flux is called permeability µ."
  • "More accurately, the permeability is the ratio existing between the amount of magnetization and the magnetizing force which produces such magnetization."
  • "A rock with large grains has large cracks, and this gives it a permeability, which is the joining of these cracks to give a path through which oil (or water or gas) can flow through the rock."