We found 38 dictionaries that define the word irritant:

General (25 matching dictionaries)

1. irritant: Merriam-Webster
2. irritant: Oxford Learner's Dictionaries
3. irritant: American Heritage Dictionary of the English Language
4. irritant: Collins English Dictionary
5. irritant: Vocabulary.com
6. Irritant, irritant: Wordnik
7. irritant: Cambridge Advanced Learner's Dictionary
8. irritant: Wiktionary
9. irritant: Webster's New World College Dictionary, 4th Ed.
10. irritant: The Wordsmyth English Dictionary-Thesaurus
11. irritant: Infoplease Dictionary
12. irritant: Dictionary.com
13. irritant: Cambridge Essential American English Dictionary
14. Irritant: Wikipedia, the Free Encyclopedia
15. Irritant: Online Plain Text English Dictionary
16. irritant: Webster's Revised Unabridged, 1913 Edition
17. irritant: Rhymezone
18. Irritant, irritant(e): AllWords.com Multi-Lingual Dictionary
19. irritant: Webster's 1828 Dictionary
20. irritant: FreeDictionary.org
21. irritant: Mnemonic Dictionary
22. irritant: TheFreeDictionary.com
23. irritant: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

24. Irritant: Health & Beauty Glossary

Business (2 matching dictionaries)

25. Irritant (X-Dream album), irritant: Legal dictionary
26. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

27. irritant: Encyclopedia

Medicine (5 matching dictionaries)

28. irritant: Merriam-Webster Medical Dictionary
29. Dorland's Illustrated Medical Dictionary (No longer online)
30. online medical dictionary (No longer online)
31. Hepatitis C Information Central (No longer online)
32. Irritant (X-Dream album), irritant: Medical dictionary

Science (1 matching dictionary)

33. Irritant: Material Safety Data Sheets HyperGlossary

Tech (3 matching dictionaries)

34. Beauty Glossary (No longer online)
35. Irritant: Beauty & Health Glossary
36. Glossary for the Modern Soap Maker (No longer online)

(Note: See irritants as well.)

Definitions from Wiktionary ( ) ▸ adjective:  Causing irritation or inflammation. ▸ adjective:  (law, Scotland) Rendering null and void; conditionally invalidating. ▸ noun:  Any medication designed to cause irritation ▸ noun:  A source of irritation. Similar: thorn, irritational, inflammatory, irritative, inflammational, dolorific, inflamed, sensigenous, injurious, inflatory, more... Opposite: soothing, calming, pleasant, comforting, relaxing Types: pollen, dust, smog, smoke, dander, lint, dandruff, hay fever, allergies, more... Phrases: irritant dermatitis, skin irritant, chemical irritant, counter irritant, dermatitis irritant, more... Adjectives: local, counter, constant, powerful, less, primary, major, strong, minor, more, mild Colors:     neon green,     electric blue,     hot pink,     lime green,     shocking pink, more... ▸ Words similar to irritant ▸ Usage examples for irritant ▸ Idioms related to irritant ▸ Wikipedia articles (New!) ▸ Popular adjectives describing irritant ▸ Popular nouns described by irritant ▸ Words that often appear near irritant ▸ Rhymes of irritant ▸ Invented words related to irritant