Meaning of incubus

in•cu•bus

Pronunciation: (in'kyu-bus, ing'-), [key]
— pl. -bi -bus•es.
  1. an imaginary demon or evil spirit supposed to descend upon sleeping persons, esp. one fabled to have sexual intercourse with women during their sleep. Cf. succubus (def. 1).
  2. a nightmare.
  3. something that weighs upon or oppresses one like a nightmare.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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