What is an instrument for measuring the curvature of spherical surface, as of lenses for telescope, etc called?
spherometer — An instrument for measuring the curvature of spherical surface, as of lenses for telescope, etc. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
- Canonical URL: https://worddirectanswers.com/answers/what-is-spherometer-sense-1-called
- Steward: Jason Burns
- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00