maenad

from WordNet (r) 3.0 (2006)

maenad
    n 1: an unnaturally frenzied or distraught woman
    2: (Greek mythology) a woman participant in the orgiastic rites
       of Dionysus

from The Collaborative International Dictionary of English v.0.48

Maenad \Mae"nad\, n. [L. Maenas, -adis, Gr. ?, ?, fr. ? to
   rave.]
   1. A Bacchante; a priestess or votary of Bacchus.
      [1913 Webster]

   2. A frantic or frenzied woman.
      [1913 Webster]