fad

views updated Jun 08 2018

fad / fad/ • n. an intense and widely shared enthusiasm for something, esp. one that is short-lived and without basis in the object's qualities; a craze: the latest gardening fad.DERIVATIVES: fad·dish adj.fad·dish·ly adv.fad·dish·ness n.fad·dism / -ˌizəm/ n.fad·dist / -ist/ n.

The Oxford Pocket Dictionary of Current English

FAD

views updated Jun 11 2018

FAD (flavin adenine dinucleotide) A coenzyme important in various biochemical reactions. It comprises a phosphorylated vitamin B2 (riboflavin) molecule linked to the nucleotide adenine monophosphate (AMP). FAD is usually tightly bound to the enzyme forming a flavoprotein. It functions as a hydrogen acceptor in dehydrogenation reactions, being reduced to FADH2. This in turn is oxidized to FAD by the electron transport chain, thereby generating ATP (two molecules of ATP per molecule of FADH2).

A Dictionary of Biology

FAD

views updated Jun 11 2018

FAD Flavin adenine dinucleotide, one of the coenzymes formed from vitamin B2 (riboflavin).

A Dictionary of Food and Nutrition DAVID A. BENDER

fad

views updated May 18 2018

fad XIX. prob. the second el. of earlier fidfad (XVIII), shortening of FIDDLE-FADDLE.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

FAD

views updated May 29 2018
A Dictionary of Plant Sciences MICHAEL ALLABY

FAD

views updated Jun 27 2018
A Dictionary of Zoology MICHAEL ALLABY

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