What's the noun for gorgoneion? Here's the word you're looking for.
gorgon
(Greek) A vicious female monster from Greek mythology with sharp fangs and hair of living, venomous snakes. One of the three sisters: Medusa, Stheno and Euryale
An intimidating, ugly, or disgusting woman; anything hideous or horrid.
(biochemistry) A complex protein frequently containing appreciable quantities of iodine and bromine that makes up the horny skeleton of typical gorgonians.