Last Updated：2025/11/22

A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

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atrial fibrillation

Source Word

atrial fibrillation

A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

Japanese Meaning

心房細動：心臓の上部2つの部屋（心房）における異常な電気的活動が引き起こす不整脈。

After experiencing episodes of atrial fibrillation, she started taking blood thinners to reduce her stroke risk.

心房細動の発作を経験した後、彼女は脳卒中のリスクを減らすために抗凝固薬を服用し始めた。

Sense（1）

A cardiac arrhythmia (abnormal heart rhythm) that involves the two upper chambers (atria) of the heart.

atrial fibrillations

（ plural ）