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View synonyms for

porous

[pawr-uhs, pohr-]

adjective

  1. full of pores.

  2. permeable by water, air, etc.

    Synonyms: , , ,


porous

/ ˈɔːə /

adjective

  1. permeable to water, air, or other fluids

  2. biology geology having pores; poriferous

  3. easy to cross or penetrate

    the porous border into Thailand

    the most porous defence in the league

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

porous

  1. Having many pores or other small spaces that can hold a gas or liquid or allow it to pass through.

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Other Word Forms

  • porously adverb
  • porousness noun
  • nonporous adjective
  • nonporousness noun
  • unporous adjective
  • unporousness noun
  • ˈǰdzܲԱ noun
  • ˈǰdzܲ adverb
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Word History and Origins

Origin of porous1

First recorded in 1350–1400; Middle English, variant of porose, from Medieval Latin ǰōܲ; pore 2, -ous
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Word History and Origins

Origin of porous1

C14: from Medieval Latin ǰōܲ, from Late Latin porus pore ²
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Example Sentences

Examples have not been reviewed.

Scotland were unimaginative in front of goal and porous in defence against the world's 74th-best team.

From

The porous, sweet bite of melon, the crumbly salinity of feta, the flaky salt crystals, the mint, the balsamic—it was revelatory.

From

As water trickles through the cabinet's porous clay walls, it naturally cools the interior.

From

The long, porous border between India and Bangladesh makes it relatively easy for armed insurgent groups from India's north-eastern states to cross over from Bangladesh.

From

Trump shared an image of the absorbent, yellow and porous icon puzzling over a notepad with a pencil in his hand.

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porosityporphyria