The Collaborative International Dictionary of English v.0.48:

Frostbite \Frost"bite\, n.
   The freezing, or effect of a freezing, of some part of the
   body, as the ears, fingers, toes, or nose. Severe frostbite
   can lead to the loss of fingers or toes. --Kane.

The Collaborative International Dictionary of English v.0.48:

Frostbite \Frost`bite"\, v. t.
   To expose to the effect of frost, or a frosty air; to blight
   or nip with frost.
   [1913 Webster]

         My wife up and with Mrs. Pen to walk in the fields to
         frostbite themselves.                    --Pepys.
   [1913 Webster]

WordNet (r) 3.0 (2006):

frostbite
    n 1: destruction of tissue by freezing and characterized by
         tingling, blistering and possibly gangrene [syn:
         frostbite, cryopathy]

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "frostbite":
   Minamata disease, ache, aching, altitude sickness, anoxemia,
   anoxia, anoxic anoxia, anthrax, benumb, bite, black lung,
   caisson disease, chilblain, chilblains, chill, chilliness,
   chilling, cold creeps, cold shivers, creeps, cryopathy, cut,
   decompression sickness, dithers, duck bumps, freeze, frost,
   go through, goose bumps, goose pimples, gooseflesh, horripilation,
   immersion foot, itai, jet lag, kibe, lead poisoning,
   mercury poisoning, motion sickness, nip, numb, penetrate, pierce,
   pneumoconiosis, radiation sickness, radionecrosis, red-out,
   refrigerate, shivering, shivers, sunstroke, the bends,
   trench foot