Phantasm /(?)/

Phan·tasm

Phantasm

n.
  1. An image formed by the mind, and supposed to be real or material; a shadowy or airy appearance; sometimes, an optical illusion; a phantom; a dream.
    They be but phantasms or apparitions.
  2. A mental image or representation of a real object; a fancy; a notion.
    Figures or little features, of which the description had produced in you no phantasm or expectation.