The Collaborative International Dictionary of English v.0.48:

Rabies \Ra"bi*es\ (r[=a]"b[i^]*[=e]z), n. [L. See Rage, n.]
   Same as Hydrophobia
   (b); canine madness.
       [1913 Webster]

WordNet (r) 3.0 (2006):

rabies
    n 1: an acute viral disease of the nervous system of warm-
         blooded animals (usually transmitted by the bite of a rabid
         animal); rabies is fatal if the virus reaches the brain
         [syn: rabies, hydrophobia, lyssa, madness]