'NAD' definitions:

Definition of 'NAD'

(from WordNet)
noun
A coenzyme present in most living cells and derived from the B vitamin nicotinic acid; serves as a reductant in various metabolic processes [syn: nicotinamide adenine dinucleotide, NAD]

Definition of 'Nad'

From: GCIDE
  • Nad \Nad\ (n[a^]d), Nadde \Nad"de\ (n[a^]d"de). [Contr. fr. ne hadde.] Had not. [Obs.] --Chaucer. [1913 Webster]

Acronyms for 'nad'

From: V.E.R.A.
  • Network Access Device