What is an attachment to a microscope, telescope, or other optical instrument, for making the image erect instead of inverted called?
erector — (Physics) An attachment to a microscope, telescope, or other optical instrument, for making the image erect instead of inverted. (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