We found 28 dictionaries that define the word active immunity:

General (13 matching dictionaries)

1. active immunity: Merriam-Webster
2. active immunity: Oxford Learner's Dictionaries
3. active immunity: American Heritage Dictionary of the English Language
4. active immunity: Vocabulary.com
5. active immunity: The Wordsmyth English Dictionary-Thesaurus
6. active immunity: Infoplease Dictionary
7. active immunity: Dictionary.com
8. Active immunity: Wikipedia, the Free Encyclopedia
9. active immunity: Rhymezone
10. active immunity: FreeDictionary.org
11. active immunity: Mnemonic Dictionary
12. active immunity: TheFreeDictionary.com
13. active immunity: Merriam-Webster

Business (1 matching dictionary)

14. active immunity: Legal dictionary

Computing (1 matching dictionary)

15. active immunity: Encyclopedia

Medicine (11 matching dictionaries)

16. active immunity: Merriam-Webster Medical Dictionary
17. Dorland's Illustrated Medical Dictionary (No longer online)
18. Active immunity, Immunity, active: MedTerms.com Medical Dictionary
19. AIDSinfo Glossary (No longer online)
20. Medical Dictionary (No longer online)
21. online medical dictionary (No longer online)
22. Health and Wellness Dictionary (No longer online)
23. National Immunization Program Glossary (No longer online)
24. Glossary of HIV/AIDS Related Terms (No longer online)
25. active immunity: Medical dictionary
26. Active immunity, Immunity, active: Drug Medical Dictionary

Science (1 matching dictionary)

27. Drug Discovery and Development (No longer online)

Slang (1 matching dictionary)

28. active immunity: Urban Dictionary

Definitions from WordNet (active immunity) ▸ noun:  a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens Types: vaccination, immunization, injection, immunotherapy, more... ▸ Words similar to active immunity ▸ Usage examples for active immunity ▸ Idioms related to active immunity ▸ Wikipedia articles (New!) ▸ Words that often appear near active immunity ▸ Rhymes of active immunity ▸ Invented words related to active immunity