We found 29 dictionaries that define the word protestantism:

General (22 matching dictionaries)

1. Protestantism, protestantism: Merriam-Webster
2. Protestantism: Oxford Learner's Dictionaries
3. Protestantism: American Heritage Dictionary of the English Language
4. Protestantism: Collins English Dictionary
5. Protestantism: Vocabulary.com
6. Protestantism, protestantism: Wordnik
7. Protestantism, protestantism: Cambridge Advanced Learner's Dictionary
8. Protestantism: Wiktionary
9. Protestantism: Infoplease Dictionary
10. Protestantism, protestantism: Dictionary.com
11. protestantism: Cambridge Essential American English Dictionary
12. Protestantism: Wikipedia, the Free Encyclopedia
13. Protestantism: Online Plain Text English Dictionary
14. protestantism: Webster's Revised Unabridged, 1913 Edition
15. Protestantism: Rhymezone
16. Protestantism: AllWords.com Multi-Lingual Dictionary
17. protestantism: Webster's 1828 Dictionary
18. protestantism: FreeDictionary.org
19. protestantism: Mnemonic Dictionary
20. Protestantism: TheFreeDictionary.com

Business (2 matching dictionaries)

21. Protestantism: Merriam-Webster Legal Dictionary
22. Protestantism: Legal dictionary

Computing (1 matching dictionary)

23. Protestantism: Encyclopedia

Medicine (2 matching dictionaries)

24. Medical Dictionary (No longer online)
25. online medical dictionary (No longer online)

Religion (1 matching dictionary)

26. Glossary of spiritual and religious terms (No longer online)

Slang (1 matching dictionary)

27. Protestantism: Urban Dictionary

(Note: See protestant as well.)

Definitions from Wiktionary (Protestantism) ▸ noun:  The Protestant (rather than the Roman Catholic or Orthodox) Christian faith. ▸ noun:  Collectively, the Protestant churches or the Protestants. ▸ noun:  The beliefs held by the Protestant churches. Similar: Protestancy, Christianism, Western Christianity, Catholicism, Old Catholic Church, Calvinism, Christendom, orthodoxy, Roman Catholicism, Orthodox Church, more... Opposite: Catholicism, Anglicanism Types: Anglicanism, Baptism, Calvinism, Lutheranism, Methodism, Presbyterianism, more... Phrases: liberal protestantism, Protestantism in the United States, Protestantism by country, Protestantism in Ireland, History of Protestantism, more... Adjectives: evangelical, liberal, conservative, modern, mainline, ascetic, early, century, orthodox, radical, mainstream Colors:     black,     white,     purple,     green,     blue, more... ▸ Words similar to protestantism ▸ Usage examples for protestantism ▸ Idioms related to protestantism ▸ Wikipedia articles (New!) ▸ Popular adjectives describing protestantism ▸ Words that often appear near protestantism ▸ Rhymes of protestantism ▸ Invented words related to protestantism