Definition of porous
- hardwood is porous
- porous national boundaries
The country has a porous border.
a cleaner that should not be used on porous surfaces
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'porous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: having small holes that allow air or liquid to pass through
: easy to pass or get through
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