noun
apex beat; apex pulse; point of maximum impulse
Medical/anatomical term for the palpable cardiac impulse at the apex of the heart, typically felt on the chest wall.
医師は聴診器で心尖拍動を確認した。
The doctor checked the apex beat with a stethoscope.
Compound of 心尖 (しんせん, 'cardiac apex') and 拍動 (はくどう, 'pulsation, beat').