SINOATRIAL NODE


Meaning of SINOATRIAL NODE in English

/suy"noh ay"tree euhl, suy'-/ , Anat.

a small mass of tissue in the right atrium functioning as pacemaker of the heart by giving rise to the electric impulses that initiate heart contractions. Also called sinus node .

[ 1920-25; SINO- + ATRIAL ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .