Wiktionary
nebivolol
n. A β1 receptor blocker with nitric oxide-potentiate vasodilatory effect, used to treat hypertension.
Wikipedia
Nebivolol
Nebivolol is a β receptor blocker with nitric oxide-potentiating vasodilatory effect used in treatment of hypertension and, in Europe, also for left ventricular failure. It is highly cardioselective under certain circumstances.