ˌnikəˈtēnəˌmīd, -_mə̇d noun
Etymology: International Scientific Vocabulary nicotin- + amide
: a bitter crystalline basic amide C 5 H 4 NCONH 2 that is a member of the vitamin B complex and is interconvertible with nicotinic acid in the living organism, that occurs naturally usually as a constituent of coenzymes, and that is used similarly to nicotinic acid; the amide of nicotinic acid — called also niacin ; see pyridine nucleotide