- The definition of porous is a material that is able to easily absorb fluids or allow liquid to pass through.
A material through which liquid can easily pass is an example of a porous material.
full of pores, through which fluids, air, or light may pass
Origin of porousMiddle English ; from Medieval Latin porosus ; from Classical Latin porus, pore
- Admitting the passage of gas or liquid through pores or interstices.
- Easily crossed or penetrated: a porous border.
Origin of porousMiddle English, from Old French poreux, poros, from Medieval Latin porōsus, from Latin porus, passage; see pore2.
(comparative more porous, superlative most porous)
- Full of tiny pores that allow fluids or gasses to pass through.
- Sponges are porous so they can filter water while trapping food.
- Concrete is porous, so water will slowly filter through it.
- (Of legislation) full of loopholes
- (figuratively) With many gaps.