We found 19 dictionaries that define the word porousness:

General (15 matching dictionaries)

1. porousness: Merriam-Webster
2. porousness: Oxford Learner's Dictionaries
3. porousness: Collins English Dictionary
4. porousness: Vocabulary.com
5. porousness: Wordnik
6. porousness: Wiktionary
7. Porousness, porousness: Dictionary.com
8. Porousness: Online Plain Text English Dictionary
9. porousness: Webster's Revised Unabridged, 1913 Edition
10. porousness: Rhymezone
11. Porousness: AllWords.com Multi-Lingual Dictionary
12. porousness: Webster's 1828 Dictionary
13. porousness: FreeDictionary.org
14. porousness: Mnemonic Dictionary
15. porousness: TheFreeDictionary.com

Business (1 matching dictionary)

16. porousness: Legal dictionary

Computing (1 matching dictionary)

17. porousness: Encyclopedia

Medicine (2 matching dictionaries)

18. porousness: Merriam-Webster Medical Dictionary
19. porousness: Medical dictionary

(Note: See porous as well.)

Definitions from Wiktionary (porousness) ▸ noun:  The quality of being porous. Similar: porosity, perviousness, nonporousness, poriness, imporosity, macroporosity, permeability, unporousness, semipermeability, penetrableness, more... ▸ Words similar to porousness ▸ Usage examples for porousness ▸ Idioms related to porousness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing porousness ▸ Words that often appear near porousness ▸ Rhymes of porousness ▸ Invented words related to porousness