lyssa Meaning, Definition & Usage

  1. noun 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
    madness; hydrophobia; rabies.

WordNet

Lys"sa noun
Etymology
NL. See Lytta.
Definitions
  1. (Med.) Hydrophobia. ✍ The plural (Lyssæ) has been used to signify the pustules supposed to be developed under the tongue in hydrophobia.

Webster 1913