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

But the permeability of James’s protagonists suggests that more than just these parts are possible. — Katy Waldman, New Yorker, 31 Aug. 2026

Emphasis will be placed on public realm quality, visual permeability, and access to the ocean, Intracoastal, parks and public spaces. — Susannah Bryan, Sun Sentinel, 23 Aug. 2026

Possible applications include textiles that automatically regulate air or light permeability as environmental conditions change. — Alexandra Harrell, Footwear News, 13 Aug. 2026

Peptide therapeutics face delivery challenges, including rapid degradation, limited membrane permeability and difficulty reaching intracellular targets. — Kj Dhaliwal, Forbes.com, 26 June 2026

Word History

First Known Use

1759, in the meaning defined at sense 1

Rhymes for permeability

• affability
• audibility
• bistability
• capability
• changeability
• contractility
• credibility
• culpability
• disability
• disutility
• durability
• fallibility

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