Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Porosity refers to the measure of how much empty space, or pores, there is in a material such as soil or rock. It indicates the ability of a substance to hold and transmit fluids.
Related terms
Saturation: Saturation refers to the state when all available pore spaces in a material are filled with water or other fluids.