nə̇ˈkethəˌmīd, -_mə̇d noun
Etymology: nik- (alteration of nic- in nicotinic acid ) + di eth yl + amide
: a bitter viscous liquid or crystalline compound C 5 H 4 NCON(C 2 H 5 ) 2 used chiefly in aqueous solution as a respiratory stimulant; N,N -diethyl-nicotinamide