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We found 8 dictionaries with English definitions that include the word fibrillations:
Click on the first link on a line below to go directly to a page where "fibrillations" is defined.

General (7 matching dictionaries)

1. fibrillations: Merriam-Webster.com [home, info]
2. fibrillations: Collins English Dictionary [home, info]
3. fibrillations: Vocabulary.com [home, info]
4. fibrillations: Wiktionary [home, info]
5. fibrillations: Dictionary.com [home, info]
6. Fibrillations: Wikipedia, the Free Encyclopedia [home, info]
7. fibrillations: Dictionary/thesaurus [home, info]

Medicine (1 matching dictionary)

8. fibrillations: Medical dictionary [home, info]

(Note: See fibrillation for more definitions.)

Quick definitions from WordNet (fibrillation) ▸ noun:  act or process of forming fibrils ▸ noun:  muscular twitching involving individual muscle fibers acting without coordination ▸ Also see fibrillation ▸ Words similar to fibrillations ▸ Usage examples for fibrillations ▸ Popular adjectives describing fibrillations ▸ Words that often appear near fibrillations ▸ Rhymes of fibrillations ▸ Invented words related to fibrillations