permeability
noun
per·me·abil·i·ty
ˌpər-mē-ə-ˈbi-lə-tē 
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 cell does this with a membrane permeable enough to let nutrients in but solid enough to hold the cell together, plus molecular controls to modulate that permeability as needed.
—
Amanda Gefter, Quanta Magazine, 10 Apr. 2026
The question is not merely about one individual, but about the permeability of global networks — how figures with deeply rooted ties to foreign governments and controversial pasts can reemerge in influential cultural and political spaces.
—Antonio María Delgado, Miami Herald, 6 Apr. 2026
This creates permanent skin damage around the well, fundamentally destroying its natural permeability and crippling its long-term productivity.
—Siddharth Misra, Fortune, 28 Mar. 2026
Called the Amorphous Motor, the system uses amorphous steel – a steel alloy with incredibly high durability, strength, and magnetic permeability.
—Prabhat Ranjan Mishra, Interesting Engineering, 9 Mar. 2026
See All Example Sentences for permeability
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Amanda Gefter, Quanta Magazine, 10 Apr. 2026
The question is not merely about one individual, but about the permeability of global networks — how figures with deeply rooted ties to foreign governments and controversial pasts can reemerge in influential cultural and political spaces.
—Antonio María Delgado, Miami Herald, 6 Apr. 2026
This creates permanent skin damage around the well, fundamentally destroying its natural permeability and crippling its long-term productivity.
—Siddharth Misra, Fortune, 28 Mar. 2026
Called the Amorphous Motor, the system uses amorphous steel – a steel alloy with incredibly high durability, strength, and magnetic permeability.
—Prabhat Ranjan Mishra, Interesting Engineering, 9 Mar. 2026
See All Example Sentences for permeability
Cite this Entry
“Permeability.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permeability. Accessed 23 Apr. 2026.
Copy CitationKids Definition
permeability
noun
per·me·abil·i·ty
ˌpər-mē-ə-ˈbil-ət-ē
: the quality or state of being permeable
Medical Definition
permeability
noun
per·me·abil·i·ty
ˌpər-mē-ə-ˈbil-ət-ē
plural permeabilities
: the quality or state of being permeable
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