We found 46 dictionaries that define the word allergen:

General (21 matching dictionaries)

1. allergen: Merriam-Webster
2. allergen: Oxford Learner's Dictionaries
3. allergen: American Heritage Dictionary of the English Language
4. allergen: Collins English Dictionary
5. allergen: Vocabulary.com
6. Allergen, allergen: Wordnik
7. allergen: Cambridge Advanced Learner's Dictionary
8. allergen: Wiktionary
9. allergen: Webster's New World College Dictionary, 4th Ed.
10. allergen: The Wordsmyth English Dictionary-Thesaurus
11. allergen: Infoplease Dictionary
12. allergen: Dictionary.com
13. Allergen: Wikipedia, the Free Encyclopedia
14. allergen: Rhymezone
15. allergen: FreeDictionary.org
16. allergen: Mnemonic Dictionary
17. allergen: TheFreeDictionary.com
18. allergen: Longman Dictionary of Contemporary English
19. allergen: Merriam-Webster

Art (1 matching dictionary)

20. Allergen: Health & Beauty Glossary

Business (1 matching dictionary)

21. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

22. allergen: Encyclopedia

Medicine (18 matching dictionaries)

23. allergen: Merriam-Webster Medical Dictionary
24. Dorland's Illustrated Medical Dictionary (No longer online)
25. Allergen: MedTerms.com Medical Dictionary
26. Allergen: Allergy Glossary of Terms
27. online medical dictionary (No longer online)
28. Allergen: GLOSSARY OF ALLERGY TERMS
29. Hepatitis C Information Central (No longer online)
30. Allergy Glossary (No longer online)
31. KidsHealth Glossary of Medical Words (No longer online)
32. Allergen: MEDLINE plus Illustrated Medical Encyclopedia
33. allergen: Dictionary of Cancer Terms
34. allergen: Parents' Common Sense Encyclopedia
35. Glossary of HIV/AIDS Related Terms (No longer online)
36. A-Z Family health glossary (No longer online)
37. allergen: Medical dictionary
38. University of Maryland Glossary of Medical Terms (No longer online)
39. Allergen: Drug Medical Dictionary
40. Hyperdictionary (No longer online)

Science (2 matching dictionaries)

41. Drug Discovery and Development (No longer online)
42. Botanical Terms (No longer online)

Tech (2 matching dictionaries)

43. Beauty Glossary (No longer online)
44. Allergen: Beauty & Health Glossary

(Note: See allergenic as well.)

Definitions from Wiktionary ( ) ▸ noun:  (medicine) A substance which causes an allergic reaction. Similar: anaphylactogen, antiallergen, antiallergenic, panallergen, antiallergic, superallergen, antihistamine, anaphylotoxin, allergoid, drug challenge, more... Opposite: antigen, immunogen Phrases: Allergen immunotherapy, pollen allergen, allergen extract, contact allergen, alum-precipated allergen, more... Adjectives: major, specific, offending, common, particular, same, potent, important, potential, causative, inhaled ▸ Words similar to allergen ▸ Usage examples for allergen ▸ Idioms related to allergen ▸ Wikipedia articles (New!) ▸ Popular adjectives describing allergen ▸ Words that often appear near allergen ▸ Rhymes of allergen ▸ Invented words related to allergen