porosity

noun
po·​ros·​i·​ty | \ pə-ˈrä-sə-tē How to pronounce porosity (audio) , 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 Low porosity hair means your cuticles are compact and difficult to penetrate. Amber Rambharose, Allure, "The Science of Beauty: How to Take Care of Curly Hair," 10 Dec. 2020 That encounter sparked Project Row Houses, a now almost 30-year-long nonprofit enterprise that vividly examines the porosity between art and activism. New York Times, "The 25 Most Influential Works of American Protest Art Since World War II," 15 Oct. 2020 Filling in the depression with mulch doesn’t change the way the water moves; the fill should be a low-porosity soil, such as clay. Washington Post, "My basement window well keeps filling with water. What can I do?," 28 Sep. 2020 The sudden tug caused the molecular structure of the PTFE to uncoil, creating billions of microscopic air pockets that added strength and porosity. Washington Post, "Robert W. Gore, company president and inventor of Gore-Tex, dies at 83," 20 Sep. 2020 Jaworski and Peake have mathematically calculated how engineers might use such porosity and elasticity to reduce noise, and how to quantify that diminished din. Dana Mackenzie, Smithsonian Magazine, "To Silence Wind Turbines and Airplanes, Engineers Are Studying Owl Wings," 15 Apr. 2020 Equalizing solutions, like Aveda’s BB Damage Remedy, also reinforce your hair’s porosity before sitting down for new color. Halie Lesavage, Glamour, "7 Things I Wish I’d Known Before Dying My Hair From Blonde to Brown," 10 July 2020 Usually, low porosity hair needs heat in order to open up the hair shaft, which results in me sitting under a steamer or dryer with a mask or deep conditioner. Shalwah Evans, Essence, "This Black-Owned Brand Just Made The Dream Product For Low Porosity Hair," 15 June 2020 And to minimize porosities, the researchers used the large existing body of research about powder and other kinds of welding, where metal powder is heated to form the bonding agent between two pieces of metal. Caroline Delbert, Popular Mechanics, "Scientists Use a Little Math to Print the Strongest Kind of Steel," 19 Apr. 2020

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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Time Traveler for porosity

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

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Statistics for porosity

Last Updated

22 Dec 2020

Cite this Entry

“Porosity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/porosity. Accessed 18 Jan. 2021.

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More Definitions for porosity

porosity

noun
po·​ros·​i·​ty | \ pə-ˈräs-ət-ē, pō-, pȯ- How to pronounce porosity (audio) \
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

More from Merriam-Webster on porosity

Britannica English: Translation of porosity for Arabic Speakers

Britannica.com: Encyclopedia article about porosity

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