, or fangs, of a domestic cat. (The largest two teeth of the top and bottom rows of teeth.)]]A fang is a long, pointed tooth. In mammals, a fang is a canine tooth, used for biting and tearing flesh. In snakes, it is a poison-injecting tooth (see snake venom). Spiders also have fangs, which are part of the chelicerae.In mythology and folklore, fangs are found on vampires and demons.FangzahnCroc