a protein, containing iron, that is found in chloroplasts and transports electrons in photosynthesis, nitrogen fixation, and other biological processes
See ferredoxin in American Heritage Dictionary 4
(fĕrˌĭ-dŏkˈsĭn)
noun
An iron-containing protein present in green plants and certain anaerobic bacteria that functions in electron transport reactions in biochemical processes, such as photosynthesis.