small and involuntary contraction of muscles from a spontaneous activation of muscle fibres or single muscle cells. It is especially applied to the heart. See arrhythmia.
FIBRILLATION: "Joe suffered from fibrillation of his heart muscle."
Cite this page: N., Sam M.S., "FIBRILLATION," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/fibrillation/ (accessed March 21, 2023).
