porosity

noun
po·​ros·​i·​ty | \pə-ˈrä-sə-tē, pȯ-\
plural porosities

Definition of porosity 

1a : the quality or state of being porous

b : the ratio of the volume of interstices of a material to the volume of its mass

2 : pore

Examples of porosity in a Sentence

Recent Examples on the Web

The second is the porosity of urban boundaries: the creation and preservation of active in-between places that keep different urban realms connected rather than cut off from each other. Shlomo Angel, WSJ, "‘Building and Dwelling’ Review: A Manifesto for the Open City," 6 July 2018 Juričić worked with Arup to develop the shape, which was created with generative algorithms that use parameters like the room’s shape, the archetypal form of Mediterranean pergolas, and desired porosity to inform the pergola’s final form. Liz Stinson, Curbed, "Ethereal 3D-printed pergola debuts at Venice Architecture Biennale," 18 June 2018 The rocks that are easiest to tap have both high porosity (meaning: big holes) and high permeability (holes that connect well to each other). Jeffrey Ball, Fortune, "Photographing The Permian Basin," 25 May 2018 Shale tends to have both low porosity and low permeability. Jeffrey Ball, Fortune, "Photographing The Permian Basin," 25 May 2018 Other constituents might interfere with the permeability and porosity of the shale itself, gumming up oil production. Jennifer Hiller, San Antonio Express-News, "Oil field wastewater finds a second life," 7 May 2018 The porosity of these soils stores more water, which contributes to the wines’ characteristic freshness and exuberance. Bloomberg.com, "Volcanic Wines Are Heating Up Around the Globe," 30 Mar. 2018 The top layer of dirt loses porosity, texture and the ability to absorb and hold water. Angela Fritz, Washington Post, "How the harrowing Thomas Fire planted the seed for California’s deadly mudslides," 10 Jan. 2018 The models varied based on details like the porosity used and how much friction was generated. John Timmer, Ars Technica, "Enceladus heats up because its core is like a sponge," 12 Nov. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'porosity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of porosity

14th century, in the meaning defined at sense 1a

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The first known use of porosity was in the 14th century

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More Definitions for porosity

porosity

noun
po·​ros·​i·​ty | \pə-ˈräs-ət-ē, pō-, pȯ- \
plural porosities

Medical Definition of porosity 

1a : the quality or state of being porous

b : the ratio of the volume of interstices of a material to the volume of its mass

2 : pore

Keep scrolling for more

More from Merriam-Webster on porosity

Rhyming Dictionary: Words that rhyme with porosity

Britannica English: Translation of porosity for Arabic Speakers

Britannica.com: Encyclopedia article about porosity

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