porosity

noun

po·​ros·​i·​ty pə-ˈrä-sə-tē 

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

Other factors like density and porosity, which refer to the thickness and how easily the hair can absorb and retain moisture, also influence whether or not a product is a fit. —Ashley Ziegler, Parents, 13 June 2024

Hair Type Generally speaking, hair glosses are suitable for the vast majority of hair types, regardless of strand porosity, thickness, color, or pattern. —Sophie Dodd, Peoplemag, 7 June 2024

Those with high porosity hair can swap this in for their regular conditioner, while people with medium to low porosity can opt to use this as a treatment when their hair needs some extra love. —Kayla Greaves, Vogue, 3 May 2024

The porosity of your hair also influences how your hair will respond to certain products. —Janell Hickman-Kirby, Vogue, 3 Apr. 2024

Word History

First Known Use

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

Kids Definition

porosity

noun

po·​ros·​i·​ty pə-ˈräs-ət-ē 

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- 

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