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

Since all personalized formulas vary based on hair densities and porosities, there may be individuals out there with hair types that need more detailed care than mine—a type 2 hair—that would find this kind of shampoo to be more special. —Maya Gandara, StyleCaster, 18 Feb. 2025

The concept of porosity might seem like a wispy metaphor for the kind of comprehensive operation that Benjamin and Lācis—as well as Adorno and their other companions—wanted to perform on European philosophy and art. —Thomas Meaney, The New Yorker, 25 Nov. 2024

This is particularly great for coily, curly, wavy, and low porosity hair types. —Jamie Wilson, Glamour, 16 Jan. 2025

For example, porosity, or the measure of a coffee ground’s void spaces, grows due to longer grinding times. —Andrew Paul, Popular Science, 11 Dec. 2024

Word History

First Known Use

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

Rhymes for porosity

• atrocity
• ferocity
• monstrosity
• pomposity
• precocity
• schistosity
• velocity
• verbosity
• viscosity
• animosity
• curiosity
• generosity

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