harpy

Short definition from Wiktionary

Noun

1. 1
   A mythological creature generally depicted as a bird-of-prey with the head of a maiden, a face pale with hunger and long claws on her hands personifying the destructive power of storm winds.
2. 2
   A shrewish woman.
3. 3
   One who is rapacious or ravenous; an extortioner.
4. 4
   Any of a number of eagle-like birds of prey of the subfamily Harpiinae, especially the species Harpia harpyja.
5. 5
   The European moor buzzard or marsh harrier (Circus aeruginosus).