# permeance

> English word · Noun

## Definitions
1. A measure of the degree to which a material allows a fluid to permeate it.
2. The reciprocal of reluctance in a magnetic circuit; the analogue of conductance in an electrical circuit.

## Etymology
From stem of Latin permeare (“to penetrate”) + -ance.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/permeance