Ferox is a Latin word meaning "fierce". It may also refer to:
Ferox , a product for combustion engines
Cannibal Ferox, a 1981 film by Umberto Lenzi (also known as Make Them Die Slowly)
Aconitum ferox, a flowering plant of the Ranunculaceae family
Alepisaurus ferox, a predatory fish of the Alepisauridae family
Apalone ferox, a soft-shell turtle of the Trionychidae family
Bathysaurus ferox, a lizardfish of the Synodontidae family
Cryptoprocta ferox, a carnivore of the Eupleridae family
Euryale ferox, a flowering plant of the Nymphaeaceae family
Odontaspis ferox, a sand shark of the Odontaspididae family
Pseudopanax ferox, a small tree endemic to New Zealand (also known as the toothed lancewood)
Salmo ferox, a species of brown trout
Urtica ferox, a poisonous tree of New Zealand
Source:
http://en.wikipedia.org/wiki/Ferox