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nicotinamide-adenine dinucleotide (NAD) a coenzyme that is involved in many biochemical oxidation-reduction reactions. The symbols for the oxidized and reduced forms are NAD and NADH.
nicotinamide-adenine dinucleotide phosphate (NADP) a coenzyme similar to nicotinamide-adenine dinucleotide but involved in fewer reactions. The symbols for the oxidized and reduced forms are NADP and NADPH.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


Farlex Partner Medical Dictionary © Farlex 2012


A coenzyme, C21H27N7O14P2, occurring in most living cells and utilized alternately with NADH as an oxidizing or reducing agent in various metabolic processes.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
(1) NAD

Medical humour No abnormality discovered An abbreviation that may be voiced to an attending (US) or consultant (UK) which may in fact mean that the requested procedure or test was 'not actually done' by the house officer (US) or houseman (UK)
Medspeak No acute distress
Physiology Nicotinamide adenine dinucleotide Acoenzyme derived from niacin which is critical in transporting electrons from the Krebs cycle to the electron-transport chain within mitochondria
(2) Nad

Vox populi ‘nad(s) Short for gonad(s)
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


Medtalk No acute distress, see there.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.


Abbreviation for nicotinamide adenine dinucleotide.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Abbrev. for nothing abnormal detected.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

NAD (nicotinamide adenine dinucleotide)

a COENZYME, made from the vitamin NICOTINIC ACID, that readily accepts or gives up hydrogen.

NADH transports electrons to the ELECTRON TRANSPORT SYSTEM during AEROBIC RESPIRATION. See also FAD.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Following on the success of Nad's Original Hair Removal Gel Kit comes Nad's Precision Eyebrow Wax Wand, a kit that includes everything needed for perfectly shaped, salon-quality brows at home, without the salon price.
NAD also considered whether the challenged advertising overstated the efficacy of the baking soda product by communicating a "double" performance benefit.
In its decision, the NAD found that everyone who participated in Coastal's promotion received the benefit of the promotion, even in the absence of adequate disclosure of limitations (Coastal, 2011).
NAD reviewed the commercials to determine whether they conveyed the unsupported message that Allstate always offers better insurance coverage, at lower rates, than the competition.
Under the terms of the agreement, and subject to completion of an exploration access agreement with the traditional owners, NAD may earn 70% of Meteoric's rights in the tenements by expenditure of A$2.5M within five years of signing an access agreement.
In this case, NAD considered the Sherwin-Williams' representation that, based on its Material Safety Data Sheets and Technical Data Sheets, certain colors in its Harmony line would exceed the five grams per liter VOC threshold when its "deep base" paint was mixed with conventional colorants, but the majority of the paints in its Harmony line would yield less than five grams per liter.
However, NAD noted that it was troubled that the home-use testing did not include either the advertiser's Luvs brand diapers or private-label diapers--which together account for a significant portion of the market--or certain Huggies products on which the claims at issue were featured.
"NAD further noted that while advertisers can change marketing strategies to promote the different features of their product, they must do so truthfully to avoid any potential overstatement or consumer confusion," said NAD's report.
Felly os nad ydych yn drethdalwr neu os mai dim ond y gyfradd gynilion 10c y dylech fod yn ei thalu, mae'n bosib eich bod yn talu gormod o dreth a bod ad-daliad yn ddyledus i chi.
Nad Al Shiba area was the most active in terms of sales with 9 transactions and Industrial City followed it with 2 transactions.
Ac os ydym ni i gyd yn poeni gymaint hynny am iechyd meddwl Susan Boyle druan (sy'n Albanes gyda llaw - ond bellach, yng nghyd-destun y rhaglen, yn Brydeinwraig) - fe fyddai'n dda i ni gydnabod nad ydym ninnau'n llawn llathen chwaith..
'No cycling' signs were recently taken down at Nad Al Sheba and many cyclists presumed they were allowed to ride there again.