fer·re·dox·in 
(fĕr′ĭ-dŏksĭn)
(fĕr′ĭ-dŏksĭn)n.
An iron-containing protein present in green plants and certain anaerobic bacteria that functions in electron transport reactions in biochemical processes, such as photosynthesis.
[FER(RO)- + REDOX + -IN.]
- horror
- horror show
- hors de combat
- hors d'oeuvre
- horse
- horse around
- horseback
- horse balm
- horse bean
- horse chestnut
- horsefeathers
- horseflesh
- horsefly
- horse fly
- horse gentian
- horsehair
- horsehair worm
- horsehide
- horse latitudes
- horselaugh
- horseleech
- horseless carriage
- horse mackerel
- horseman
- horsemanship