名詞 nad:

1. a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes
   同義詞：nicotinamide adenine dinucleotide

NAD

n.（名詞）
A coenzyme, C2H 27N 7O 4P 2, occurring in most living cells and utilized alternately as an oxidizing or reducing agent in various metabolic processes.
納迪：一種輔酶， C2H 27N 7O 4P 2，存在于大多數(shù)活細(xì)胞中，而且在各種新陳代謝過程中作為氧化劑或還原劑交替使用

來源：
From n(icotinamide) a(denine) d(inucleotide) [one of its chemical names]
源自 n(icotinamide) a(denine) d(inucleotide) [它的化學(xué)名之一]