Breadcrumb Home > Thesaurus > N Synonyms of nad Find synonyms for: Noun 1. nicotinamide adenine dinucleotide, NAD, coenzyme usage: a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of nad (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language