fibrillate

US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈfɪbrəˌleɪt, ˈfaɪbrə-/ ,USA pronunciation: respelling(fī′brə lāt′, fib′rə-)

Inflections of 'fibrillate' (v): (⇒ conjugate)
fibrillates
v 3rd person singular
fibrillating
v pres p
fibrillated
v past
fibrillated
v past p

WordReference Random House Learner's Dictionary of American English © 2026
fib•ril•late /ˈfɪbrəˌleɪt, ˈfaɪbrə-/USA pronunciation   v., -lat•ed, -lat•ing. 
  1. Pathology(of muscular tissue) to twitch or quiver uncontrollably: [no object]Suddenly the patient's heart began to fibrillate.[~ + object]The machine sent electrical shocks to the heart and fibrillated it.
fib•ril•la•tion /ˌfɪbrəˈleɪʃən, ˌfaɪbrə-/USA pronunciation  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026
fi•bril•late  (fī′brə lāt′, fib′rə-),USA pronunciation v., -lat•ed, -lat•ing. 
v.t. 
  1. Pathologyto cause to undergo fibrillation.

v.i. 
  1. Pathologyto undergo fibrillation.
  • fibrill(a) + -ate1 1830–40
fi′bril•la′tive, adj. 

'fibrillate' also found in these entries (note: many are not synonyms or translations):
defibrillate - fibrillation

Forum discussions with the word(s) "fibrillate" in the title:


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