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We found 39 dictionaries with English definitions that include the word porous:
Click on the first link on a line below to go directly to a page where "porous" is defined.

General dictionaries General (29 matching dictionaries)
  1. porous: Merriam-Webster.com [home, info]
  2. porous: Oxford Learner's Dictionaries [home, info]
  3. porous: American Heritage Dictionary of the English Language [home, info]
  4. porous: Collins English Dictionary [home, info]
  5. porous: Vocabulary.com [home, info]
  6. porous: Macmillan Dictionary [home, info]
  7. Porous, porous: Wordnik [home, info]
  8. porous: Cambridge Advanced Learner's Dictionary [home, info]
  9. porous: Wiktionary [home, info]
  10. porous: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. porous: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. porous: Infoplease Dictionary [home, info]
  13. porous: Dictionary.com [home, info]
  14. porous: Online Etymology Dictionary [home, info]
  15. porous: UltraLingua English Dictionary [home, info]
  16. porous: Cambridge Dictionary of American English [home, info]
  17. Porous: Wikipedia, the Free Encyclopedia [home, info]
  18. Porous: Online Plain Text English Dictionary [home, info]
  19. porous: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. porous: Rhymezone [home, info]
  21. porous: AllWords.com Multi-Lingual Dictionary [home, info]
  22. porous: Webster's 1828 Dictionary [home, info]
  23. porous: Free Dictionary [home, info]
  24. porous: Mnemonic Dictionary [home, info]
  25. porous: WordNet 1.7 Vocabulary Helper [home, info]
  26. porous: LookWAYup Translating Dictionary/Thesaurus [home, info]
  27. porous: Dictionary/thesaurus [home, info]

Business dictionaries Business (1 matching dictionary)
  1. porous: Legal dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. porous: Encyclopedia [home, info]

Medicine dictionaries Medicine (2 matching dictionaries)
  1. porous: online medical dictionary [home, info]
  2. porous: Medical dictionary [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. porous: Urban Dictionary [home, info]

Tech dictionaries Tech (5 matching dictionaries)
  1. Porous: AUTOMOTIVE TERMS [home, info]
  2. POROUS: Lake and Water Word Glossary [home, info]
  3. porous: Schlumberger Oilfield Glossary [home, info]
  4. porous: Coin Collecting [home, info]
  5. porous: Glossary of Water Resource Terms [home, info]

(Note: See porousness for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (porous)

adjective:  able to absorb fluids ("The partly porous walls of our digestive system")
adjective:  full of pores or vessels or holes
adjective:  allowing passage in and out ("Our unfenced and largely unpoliced border inevitably has been very porous")

▸ Also see porousness
Word origin

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Phrases that include porous:   ring porous, forced convection in porous media, porous cell, porous cups, porous electrode, more...

Words similar to porous:   holey, poriferous, porously, porousness, insubstantial, more...

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