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 The second denotes vapor permeability, also known as breathability—from 5,000 grams for high to 20,000 grams for minimal. Kelly Bastone, Outside Online, 18 June 2021 Insulation’s air permeability is measured in cubic feet per minute. Kelly Bastone, Outside Online, 18 June 2021 Its wind permeability is slightly behind that of NeoShell, but given its ability to genuinely withstand heavy rainfall, that’s not necessarily a bad thing. Wes Siler, Outside Online, 18 Sep. 2021 This permeability helps with exfoliation, but experts recommend keeping your face-steaming sessions short to avoid accidentally making your skin drier. Mara Santilli, SELF, 28 Feb. 2022 Indeed, the vitality of Sherlock probably owes a lot to the permeability of Conan Doyle’s reality, lived on both sides of the page. Jonathon Keats, Forbes, 31 Jan. 2022 There is evidence that locking tailings up in cement decreases their permeability and stabilizes any heavy metals within them. Becki Robins, The Atlantic, 30 Jan. 2022 Then, too, there’s the permeability of the home kitchen — in which chef and diner are often the same person, and guests may come and go, and even help with the stirring and the tasting. New York Times, 11 Nov. 2021 But at the same time, identity’s fluidity and permeability allow for the possibility of growth., 4 Nov. 2021 See More

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.

First Known Use of permeability

1759, in the meaning defined at sense 1

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The first known use of permeability was in 1759

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Last Updated

30 Jul 2022

Cite this Entry

“Permeability.” Dictionary, Merriam-Webster, Accessed 10 Aug. 2022.

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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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