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Meaning of ferredoxin

fer•re•dox•in

Pronunciation: (fer"u-dok'sin), [key]
— n. Biochem.
  1. any of a group of red-brown proteins containing iron and sulfur and acting as an electron carrier during photosynthesis, nitrogen fixation, or oxidation-reduction reactions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.