nad

¹

[nad]

noun

Slang: Vulgar.

1. Usually nads. a testicle.

NAD

²

Biochemistry.

1. nicotinamide adenine dinucleotide: a coenzyme, C 2 1 H 2 7 N 7 O 1 4 P 2 , involved in many cellular oxidation-reduction reactions.

N.A.D.

³

abbreviation

1. National Academy of Design.

NAD

noun

1. Former name: DPN. biochem nicotinamide adenine dinucleotide; a coenzyme that is a hydrogen carrier in metabolic reactions, esp in tissue respiration

NAD

1. Short for nicotinamide adenine dinucleotide. A coenzyme that occurs in many living cells and functions as an electron acceptor. NAD is used alternately with NADH as an oxidizing or reducing agent in metabolic reactions. Chemical formula: C ₂₁ H ₂₇ N ₇ O ₁₄ P ₂ .

Word History and Origins

Origin of nad¹

First recorded in 1960–65; shortening of gonad ( def. )

Example Sentences

And last month, the N.A.D. recommended that Butterball modify or drop the phrase “farmers humanely raise our turkeys every day” from its labels — although it said it was acceptable for the company to continue saying it has a “zero-tolerance policy against any form of animal mistreatment.”

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Another drug candidate involves a coenzyme called nicotinamide adenine dinucleotide, or N.A.D.

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As people age, levels of N.A.D. decline to the point where it is undetectable in the blood of the elderly.

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Referring to the ruling against the campaign, Ms. Brinker wrote that Procter & Gamble was “pleased that N.A.D. has reviewed our competitor’s claims to help set the record straight.”

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“We respect the self-regulatory process, but we believe in our methodology and the quality of our science, which is why we’re appealing the N.A.D. decision,” said Rob Candelino, a marketing vice president at Unilever, who declined to discuss specifics of the case while the appeal was pending.

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