n.
Pronunciation: n ə - ' fe-d ə - ˌ p ē n, -p ə n
Function: noun
Etymology: probably ni tr- + -fe- (fr. phe nyl) + -dipine (by alteration & shortening from pyridine )
Date: 1974
: a calcium channel blocker C 17 H 18 N 2 O 6 that is a coronary vasodilator used especially in the treatment of angina pectoris