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

There’s a permeability between the practices of writing and moving; one discipline informs the other. —Bonnie Tsui, The Atlantic, 20 Jan. 2026

During those two years of R&D, Skyeton claims to have resolved issues related to climate resilience, hydrogen permeability, and infrastructure and logistics. —Chris Young, Interesting Engineering, 19 Jan. 2026

In humid climates, drying time was less important since moisture was ever-present, but high air permeability that kept air moving was key to comfort. —Adam Trenkamp, Outside, 27 Dec. 2025

My reading of it was as a nod to permeability. —Hazlitt, 23 Dec. 2025

Word History

First Known Use

1759, in the meaning defined at sense 1

Rhymes for permeability

• acceptability
• accessibility
• adaptability
• admissibility
• advisability
• affordability
• allowability
• amenability
• amiability
• appealability
• applicability
• availability

Kids 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