What is a dioptric telescope, fitted with two tubes joining, so as to enable a person to view an object with both eyes at once; a double- barreled field glass or an opera glass called?
binocle — A dioptric telescope, fitted with two tubes joining, so as to enable a person to view an object with both eyes at once; a double- barreled field glass or an opera glass. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00