WordNet (r) 3.0 (2006):

trench foot
    n 1: resembling frostbite but without freezing; resulting from
         exposure to cold and wet [syn: trench foot, immersion
         foot]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "trench foot":
   Minamata disease, altitude sickness, anoxemia, anoxia,
   anoxic anoxia, anthrax, black lung, caisson disease, chilblain,
   decompression sickness, frostbite, immersion foot, itai, jet lag,
   lead poisoning, mercury poisoning, motion sickness, pneumoconiosis,
   radiation sickness, radionecrosis, red-out, sunstroke, the bends