she-devil

Short definition from Wiktionary

Noun

1. 1
   A female devil (as opposed to a he-devil, male devil).
2. 2
   A woman whose bad temper, cruelty or wicked ways are so extreme as to evoke an image of the devil.

Proper noun

1. 1
   A summit in Idaho County, Idaho, United States, that is part of the Seven Devils Mountains.