fibrillatePronunciation: /ˈfʌɪbrɪleɪt, ˈfɪb-/Definition of fibrillate verb [no object] 1(of a muscle, especially in the heart) make a quivering movement due to uncoordinated contraction of the individual fibrils: the atria ceased to fibrillate when the temperature was reduced 2(of a fibre) split up into fibrils. [with object] break (a fibre) into fibrils. Derivatives fibrillationPronunciation: /-ˈleɪʃ(ə)n/ noun fibrillate in other Oxford dictionaries Definition of fibrillate in the US English dictionary
