\Graph"o*scope\, n. [Gr. gra`fein to write +
-scope.]
An optical instrument for magnifying engravings, photographs,
etc., usually having one large lens and two smaller ones.

\Graph"o*scope\, n. [Gr. gra`fein to write +
-scope.]
An optical device for showing (or photographing) an image
when projected upon the atmosphere as a screen.