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

So the authors created a digital shuttlecock model based on the commercially available Li-Ning D8 feather shuttlecock, treating it as a smooth and rigid object but ignoring surface roughness and feather porosity as variables. —Jennifer Ouellette, ArsTechnica, 19 Aug. 2025

Here are some ways to care for high porosity hair:1 Seal in moisture. —Sherri Gordon, Health, 4 June 2025

High porosity hair absorbs water easily and air dries quickly. —Sherri Gordon, Health, 4 June 2025

At home box dye is nowhere near as precise as an in salon treatment where your colorist can customize it for your hair texture, porosity, and base color. —Essence, 19 June 2025

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