Meaning & use
fibrillation
Last updated
rapid, irregular, and uncoordinated contractions of muscle fibers, especially of the heart.
See it in a sentence
Doctors diagnosed him with atrial fibrillation after noticing his irregular heartbeat.
The medication is designed to prevent dangerous fibrillation of the heart muscle.
A note on using this word
Most commonly encountered in the medical term 'atrial fibrillation,' a common type of irregular heart rhythm.
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