fibrillation

Noun

countable uncountable

The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.

Japanese Meaning

心筋細動：心臓の筋繊維が急速に、不規則で、かつ同期せずに収縮する状態

The patient was rushed to the emergency room after experiencing sudden fibrillation that caused severe palpitations and dizziness.

患者は心筋の急速で不規則な収縮（心臓の細動）を突然起こし、激しい動悸とめまいを引き起こしたため、救急外来に急送されました。

Sense（1）

The rapid, irregular, and unsynchronized contraction of the muscle fibers of the heart.

fibrillations

（ plural ）