'Perspectograph' definitions:

Definition of 'Perspectograph'

From: GCIDE

Perspectograph \Per*spec"to*graph\ (p[~e]r*sp[e^]k"t[-o]*gr[.a]f), n. [L. perspectus (p. p. of perspicere to look through) + -graph.] An instrument for obtaining, and transferring to a picture, the points and outlines of objects, so as to represent them in their proper geometrical relations as viewed from some one point. [1913 Webster]