The meaning of POROUS is possessing or full of pores. How to use porous in a sentence.

Something that is porous has many small holes, so liquid or air can pass through, especially…. Learn more.

POROUS meaning: 1 : having small holes that allow air or liquid to pass through; 2 : easy to pass or get through

porous, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Definition of porous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. Admitting the passage of gas or liquid through pores or interstices. 2. Easily crossed or penetrated: a porous border.

Dec 14, 2025 · porous (comparative more porous, superlative most porous) Sponges are porous so they can filter water while trapping food. Concrete is porous, so water will slowly filter …

Porosity or void fraction is a measure of the void (i.e. "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage …

porous /ˈpɔːrəs/ adj permeable to water, air, or other fluids having pores; poriferous easy to cross or penetrate: the porous border into Thailand, the most porous defence in the league …

Something that is porous has many small holes in it, which water and air can pass through. The local limestone is very porous.