camera obscura: Meaning and Definition of

cam'era ob•scu'ra

Pronunciation: (ob-skyoor'u), [key]
  1. a darkened boxlike device in which images of external objects, received through an aperture, as with a convex lens, are exhibited in their natural colors on a surface arranged to receive them: used for sketching, exhibition purposes, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.