We found 21 dictionaries that define the word impermeability:

General (15 matching dictionaries)

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

Business (2 matching dictionaries)

16. Construction Term Glossary (No longer online)
17. impermeability: Legal dictionary

Computing (1 matching dictionary)

18. impermeability: Encyclopedia

Medicine (2 matching dictionaries)

19. impermeability: Merriam-Webster Medical Dictionary
20. impermeability: Medical dictionary

Tech (1 matching dictionary)

21. Lake and Water Word Glossary (No longer online)

(Note: See impermeable as well.)

Definitions from Wiktionary (impermeability) ▸ noun:  the quality of being impermeable Similar: impermeableness, imperviableness, imperviability, impenetrableness, imperishability, imperviousness, permeability, impenetrability, semipermeability, impertransibility, more... Opposite: permeability, porosity Types: waterproof, airtight, impenetrable, sealed, more... Adjectives: relative, complete, high, absolute, greater, normal, renal, apparent, total, general, comparative ▸ Words similar to impermeability ▸ Usage examples for impermeability ▸ Idioms related to impermeability ▸ Wikipedia articles (New!) ▸ Popular adjectives describing impermeability ▸ Words that often appear near impermeability ▸ Rhymes of impermeability ▸ Invented words related to impermeability