pro·pran·o·lol (prō-prān'ə-lôl', -lōl', -lŏl') n. A drug, C16H21NO2, that blocks beta-adrenergic activity, used to treat hypertension, angina pectoris, and cardiac arrhythmia and to prevent migraine headaches.
Main Entry: pro·pran·o·lol Pronunciation: prO-'pran-&-"lol, -"lOl Function: noun : a beta-blockerC16H21NO2 used in the form of its hydrochloride in the treatment of abnormal heart rhythms and angina pectoris called also propanolol; —see INDERAL