porosity

noun

po·​ros·​i·​ty pə-ˈrä-sə-tē How to pronounce porosity (audio)
pȯ-
plural porosities
1
a
: 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 This is a medium-weight option that allows for air porosity and good drainage, which all add up to creating those strong roots. Brittany Vanderbill, Better Homes & Gardens, 9 Feb. 2023 That’s significant because the porosity of snowflakes makes their density much lower than the ice by itself, in same case up to 90 percent less dense. The Physics Arxiv Blog, Discover Magazine, 15 Jan. 2024 For my high porosity hair, however, the water would absorb quicker than the comb snapping through my knots– usually resulting in uncontrollable tears. India Espy-Jones, Essence, 17 Nov. 2023 European painting is part of an ongoing project to define Europe, which includes trade and colonialism, military expansion, intellectual foment, and a great deal of cultural porosity. Philip Kennicott, Washington Post, 18 Jan. 2024 Exactly why osteoclasts began misbehaving and inducing excessive porosity remained unknown, but the researchers suspected cell senescence played a role. William A. Haseltine, Forbes, 11 Dec. 2023 But people with low porosity hair will need a bit more of a potent formula to reap the benefits of a hair oil. Alyssa Brascia, Peoplemag, 28 Oct. 2023 Some silences can feel more vibrantly alive than others, or suggest a porosity between the real world and the world of the play. Darryn King, New York Times, 30 Aug. 2023 More so, understanding our hair porosity — the way in which our hair absorbs water — is more important than the 1A-4C hair scale in deciphering our unique hair needs. L'oréal Blackett, refinery29.com, 14 July 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'porosity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

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

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

Dictionary Entries Near porosity

Cite this Entry

“Porosity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/porosity. Accessed 18 Apr. 2024.

Kids Definition

porosity

noun
po·​ros·​i·​ty pə-ˈräs-ət-ē How to pronounce porosity (audio)
pōr-ˈäs-,
pȯ-ˈräs-
plural porosities
: the quality or state of being porous

Medical Definition

porosity

noun
po·​ros·​i·​ty pə-ˈräs-ət-ē, pō-, pȯ- How to pronounce porosity (audio)
plural porosities
1
a
: 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

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