We found 13 dictionaries that define the word activated sludge:

General (7 matching dictionaries)

1. activated sludge: Oxford Learner's Dictionaries
2. activated sludge: Collins English Dictionary
3. activated sludge: Wiktionary
4. activated sludge: Infoplease Dictionary
5. activated sludge: Dictionary.com
6. Activated sludge: Wikipedia, the Free Encyclopedia
7. activated sludge: TheFreeDictionary.com

Business (1 matching dictionary)

8. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

9. activated sludge: Encyclopedia

Medicine (2 matching dictionaries)

10. online medical dictionary (No longer online)
11. Activated sludge: Medical dictionary

Tech (2 matching dictionaries)

12. Lake and Water Word Glossary (No longer online)
13. ACTIVATED SLUDGE: Power Engineering

Definitions from Wiktionary (activated sludge) ▸ noun:  Sewage that has been aerated and agitated in order to promote the growth of beneficial microorganisms that break down organic matter. Similar: bioaeration, biosolid, septic tank, aeration, sludge, bioaugmentation, landfarming, sewage, aerodigestion, aerator, more... Opposite: inactivated sludge, dormant sludge, settled sludge Phrases: activated sludge process, more... ▸ Words similar to activated sludge ▸ Usage examples for activated sludge ▸ Idioms related to activated sludge ▸ Wikipedia articles (New!) ▸ Words that often appear near activated sludge ▸ Rhymes of activated sludge ▸ Invented words related to activated sludge