Definitions for FADfæd

This page provides all possible meanings and translations of the word FAD

Random House Webster's College Dictionary


  1. a temporary fashion, manner of conduct, etc., esp. one followed enthusiastically by a group.

Origin of fad:



Princeton's WordNet

  1. fad, craze, furor, furore, cult, rage(noun)

    an interest followed with exaggerated zeal

    "he always follows the latest fads"; "it was all the rage that season"


  1. fad(Noun)

    A phenomenon that becomes popular for a very short time.

Webster Dictionary

  1. Fad(noun)

    a hobby ; freak; whim


  1. Flavin adenine dinucleotide

    In biochemistry, flavin adenine dinucleotide is a redox cofactor involved in several important reactions in metabolism. FAD can exist in two different redox states, which it converts between by accepting or donating electrons. The molecule consists of a riboflavin moiety bound to the phosphate group of an ADP molecule. The flavin group is bound to ribitol, a sugar alcohol, by a carbon-nitrogen bond, not a glycosidic bond. Thus, riboflavin is not technically a nucleotide; the name flavin adenine dinucleotide is a misnomer. FAD can be reduced to FADH₂, whereby it accepts two hydrogen atoms: FAD accepts two electrons and two protons to become FADH₂. FADH₂ can then be oxidized to the semireduced form FADH by donating one electron and one proton. The semiquinone is then oxidized once more by losing an electron and a proton and is returned to the initial quinone form. FAD is an aromatic ring system, whereas FADH₂ is not. This means that FADH₂ is significantly higher in energy, without the stabilization that aromatic structure provides. FADH₂ is an energy-carrying molecule, because, if it is oxidized, it will regain aromaticity and release all the energy represented by this stabilization.

Translations for FAD

Kernerman English Multilingual Dictionary


a temporary fashion; a craze, interest or activity that (some) people follow enthusiastically, but lasts for a short period of time

What's the latest fad in dieting?; a health-food fad.

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