We found 18 dictionaries that define the word pollutants:

General (10 matching dictionaries)

1. pollutants: Merriam-Webster
2. pollutants: Collins English Dictionary
3. pollutants: Vocabulary.com
4. Pollutants, pollutants: Wordnik
5. pollutants: Cambridge Advanced Learner's Dictionary
6. pollutants: Wiktionary
7. pollutants: Dictionary.com
8. pollutants: Cambridge Essential American English Dictionary
9. Pollutants: Wikipedia, the Free Encyclopedia
10. Pollutants: TheFreeDictionary.com

Business (2 matching dictionaries)

11. MoneyGlossary.com (No longer online)
12. Pollutants: Legal dictionary

Computing (1 matching dictionary)

13. Pollutants: Encyclopedia

Medicine (2 matching dictionaries)

14. pollutants: Merriam-Webster Medical Dictionary
15. pollutants: Medical dictionary

Science (2 matching dictionaries)

16. Agricultural Thesaurus and Glossary (No longer online)
17. Atmospheric Chemistry and Air Quality (No longer online)

Slang (1 matching dictionary)

18. Pollutants: Street Terms: Drugs and the Drug Trade

(Note: See pollutant as well.)

Definitions from Wiktionary (pollutant) ▸ noun:  A foreign substance that makes something dirty, or impure, especially waste from human activities. ▸ Also see pollutant Opposite: clean, pure, uncontaminated, pristine, unpolluted Phrases: air pollutants, environmental pollutants, water pollutants, radioactive pollutants, soil pollutants, more... Adjectives: other, organic, environmental, toxic, atmospheric, gaseous, hazardous, various, industrial, major, persistent ▸ Words similar to pollutants ▸ Usage examples for pollutants ▸ Idioms related to pollutants ▸ Wikipedia articles (New!) ▸ Popular adjectives describing pollutants ▸ Words that often appear near pollutants ▸ Rhymes of pollutants ▸ Invented words related to pollutants