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Definition of "porosity" [po•ros•i•ty]

  • The state or property of being porous. (noun)
  • A structure or part that is porous. (noun)
  • The ratio of the volume of all the pores in a material to the volume of the whole. (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 "porosity" in a sentence
  • "So we have the ability to measure what's called porosity, which is how big - how much wood volume as a whole, so how much stuff could there be and whether it's connected or not?"
  • "Windbreaks should have from 20-50% porosity, that is allow"
  • "Before leaving the subject of local sandstones it will be necessary to refer to one quality they have which is of excellent utility as regards the storage of water, but which is decidedly a disadvantage in building stone -- that is, their porosity."