'Succubus' definitions:

Definition of 'succubus'

From: WordNet
noun
A female demon believed to have sexual intercourse with sleeping men [syn: succubus, succuba]

Definition of 'Succubus'

From: GCIDE
  • Succubus \Suc"cu*bus\, n.; pl. Succubi. [See Succuba.]
  • 1. A demon or fiend; especially, a lascivious spirit supposed to have sexual intercourse with the men by night; a succuba. Cf. Incubus. [1913 Webster]
  • 2. (Med.) The nightmare. See Nightmare, 2. [1913 Webster]

Synonyms of 'succubus'

From: Moby Thesaurus