permeance

American  

[pur-mee-uhns] / ˈpɜr mi əns /

noun

1. the act of permeating.

2. the conducting power of a magnetic circuit for magnetic flux; the reciprocal of magnetic reluctance.

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permeance British  

/ ˈpɜːmɪəns /

noun

1. the act of permeating

2.  Λ.  the reciprocal of the reluctance of a magnetic circuit

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Usage

What does permeance mean? Permeance is the act or process of permeating—penetrating, passing through, and often becoming widespread throughout something. Permeance can also refer to the result of this, or to the level of permeability.Permeance is typically used to mean the same thing as permeation, which is much more commonly used. Because permeance is rarely used, autocorrect might think you mean permanence.The word permeance can be used both in the context of the physical spread of something within a space and in more figurative ways, such as the permeance of water into the soil, the permeance of a smell throughout a room, or the permeance of an idea in someone’s mind.The related adjective permeant describes something, such as a liquid or gas, that has penetrated or has the ability to penetrate something else.Example: This material has a special coating that won’t allow any permeance of liquids into its surface.

Other Word Forms

• permeant adjective

Etymology

Origin of permeance

First recorded in 1835–45; perme(ant) + -ance

Example Sentences

When it comes to its permeance in our everyday lives, “technology is maybe the smallest part in the equation,” Times columnist Brian Merchant says.

From Los Angeles Times

Whatever her worries, they are easily eclipsed by the realities of a robust housing market and the seeming permeance of the takeout margarita.

From New York Times

The resultant membrane was rinsed with deionized water and dried at 70 °C. Before xylene isomer vapour permeance measurements, the membrane was calcined at 450 °C for 8 h at a ramp rate of 1 °C min−1.

From Nature

The permeance and separation factors obtained are considerably higher than those of membranes made from exfoliated nanosheets28.

From Nature

The increased loading is partly responsible for the large permeance drop.

From Nature