permeability
the property or state of being permeable.
Also called magnetic permeability. Electricity. a measure of the change in magnetic induction produced when a magnetic material replaces air, expressed as a coefficient or a set of coefficients that multiply the components of magnetic intensity to give the components of magnetic induction.
Geology. the capability of a porous rock or sediment to permit the flow of fluids through its pore spaces.
Aeronautics. the rate at which gas is lost through the envelope of an aerostat, usually expressed as the number of liters thus diffused in one day through a square meter.
Nautical. the capacity of a space in a vessel to absorb water, measured with reference to its temporary or permanent contents and expressed as a percentage of the total volume of the space.
Origin of permeability
1Other words from permeability
- non·per·me·a·bil·i·ty, noun
Words Nearby permeability
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use permeability in a sentence
“From what we understand, [with NSAIDs] one of the side effects is that they can affect the permeability of the gut,” says Fasano.
Research Shows Link Between NSAID Use and Gut Disease | Valerie Vande Panne | April 21, 2014 | THE DAILY BEASTThe amount of fluid movement also is further determined by osmotic actions and by the permeability of the capillary wall.
Another possibility is that the act of fertilization increases the permeability of the egg.
The Organism as a Whole | Jacques LoebThe interior of the cheese is anaërobic, due to low permeability and high oxygen-absorbing quality.
The Book of Cheese | Charles Thom and Walter Warner FiskThe permeability of cobalt, both annealed and unannealed, was always diminished at the low temperature.
They showed that the permeability of this sample of iron was considerably diminished at the lower temperature.
British Dictionary definitions for permeability
/ (ˌpɜːmɪəˈbɪlɪtɪ) /
the state or quality of being permeable
a measure of the response of a medium to a magnetic field, expressed as the ratio of the magnetic flux density in the medium to the field strength; measured in henries per metre: Symbol: μ See also relative permeability, magnetic constant
civil engineering the rate of diffusion of a fluid under pressure through soil
the rate at which gas diffuses through the surface of a balloon or airship, usually expressed in litres per square metre per day
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for permeability
[ pûr′mē-ə-bĭl′ĭ-tē ]
The ability of a substance to allow another substance to pass through it, especially the ability of a porous rock, sediment, or soil to transmit fluid through pores and cracks. Geologic permeability is usually measured in millidarcies. See more at darcy.
Magnetic permeability.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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