noun
atrioventricular node; AV node
Medical term for the part of the heart's conduction system that delays impulses between the atria and ventricles.
房室結節は心臓の刺激伝導系の一部です。
The atrioventricular node is part of the heart's conduction system.
Compound of 房室 (atrium and ventricle) and 結節 (node).