Meanings
nounperspective glass (plural perspective glasses)
plural perspective glasses
- A kind of early telescope.
The instrument was at first called Galileo's tube; the double eye-glass; the perspective; the trunk; the cylinder.
1896, Thomas Nathaniel Orchard, The Astronomy of Milton's 'Paradise Lost', London, New York: Longmans, Green, and Co., page 1241 more example
He mounted, carrying the only perspective glass the vessel possessed. The captain watched him anxiously as he took a long look.
1906, Herbert Strang, In Clive's Command: A Story of the Fight for India, Illustrated, India: Bobbs-Merrill Company, page 115 - historicalAn instrument for viewing an enlarged image of engraved prints or maps https://web.archive.org/web/20150424011800/http://www.monticello.org/site/research-and-collections/perspective-glass.
Cite this entry
APA
perspective glass. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/perspective%20glass
MLA
“perspective glass.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/perspective%20glass. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “perspective glass,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/perspective%20glass.
Source: perspective glass on Wiktionary, CC BY-SA 4.0.