What does fibrillation mean?
A rapid, irregular quivering or contraction of the heart muscle, or a similar irregular quivering or contraction of other muscles. In cardiology, fibrillation is a type of arrhythmia.
Example
"The doctor ordered an ECG to check for signs of fibrillation in the patient's heart."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.