per·​me·​abil·​i·​ty | \ ˌpər-mē-ə-ˈbi-lə-tē How to pronounce permeability (audio) \

Definition of permeability

1 : the quality or state of being permeable
2 : the property of a magnetizable substance that determines the degree in which it modifies the magnetic flux in the region occupied by it in a magnetic field

Examples of permeability in a Sentence

Recent Examples on the Web In the past, pharmaceutical research into the barrier focused on ways to increase permeability, not limit it, to get more drugs across it to treat brain tumors or infections. Daniela Kaufer, Scientific American, "Damage to a Protective Shield around the Brain May Lead to Alzheimer’s and Other Diseases," 23 Apr. 2021 The edifice itself is made of Aquia Creek sandstone that was painted white because of the risk posed by the permeability of the stone, which could cause cracking in colder months. Mary Elizabeth Andriotis, House Beautiful, "A Look at the Most Impressive—and Fascinating—White House Interiors Throughout History," 14 Jan. 2021 Art is obviously a very fashionable space and there's a kind of permeability between those two worlds, especially on a social level that was especially recognizable when attending art openings and other art events pre-COVID. Sara Holzman, Marie Claire, "How Ashley James Dresses for a Day at the Museum," 11 Dec. 2020 Livestock that graze intensively and then move on reduce rank forage, improve soil permeability, and can often control invasive species. Andrew Mckean, Outdoor Life, "Aldo Leopold’s 5 Essentials for Wildlife and Habitat Management," 17 Sep. 2020 On land, most of America’s crude is produced from shale reservoirs, which trap the oil in rocks with low permeability. Daniel Oberhaus, Wired, "The World Is Still Producing More Oil Than It Needs. Why?," 1 May 2020 Consisting of members from the EAA, SAWS and other agencies, the team developed a GIS (geographic information system) model to rank properties based on factors such permeability, biology, size and adjacency to open space. Brian Chasnoff, San Antonio Express-News, "Troubled Waters," 27 Feb. 2020 In Notley’s hands, the free-roving speech of poets like O’Hara became a new way of exploring the permeability of identity on the page. David Wallace, The New Yorker, "Alice Notley and the Art of Not Giving a Damn," 1 Apr. 2020 This same change in permeability could also lead to the escape of radon which forms by radioactive decay of elements in certain minerals. Everyday Einstein Sabrina Stierwalt, Scientific American, "Can We Predict Earthquakes At All?," 15 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'permeability.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of permeability

1759, in the meaning defined at sense 1

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Time Traveler for permeability

Time Traveler

The first known use of permeability was in 1759

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Statistics for permeability

Last Updated

7 May 2021

Cite this Entry

“Permeability.” Dictionary, Merriam-Webster, Accessed 15 May. 2021.

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More Definitions for permeability


per·​me·​abil·​i·​ty | \ ˌpər-mē-ə-ˈbil-ət-ē How to pronounce permeability (audio) \
plural permeabilities

Medical Definition of permeability

: the quality or state of being permeable

More from Merriam-Webster on permeability

Nglish: Translation of permeability for Spanish Speakers

Britannica English: Translation of permeability for Arabic Speakers Encyclopedia article about permeability

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