noun Date: circa 1934 a small mass of tissue in the right atrioventricular region of higher vertebrates through which impulses from the sinoatrial node are passed to the ventricles
ATRIOVENTRICULAR NODE
Meaning of ATRIOVENTRICULAR NODE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012