spherometer

American  

[sfi-rom-i-ter] / sfɪˈrɒm ɪ tər /

noun

1. an instrument for measuring the curvature of spheres and curved surfaces.

---

spherometer British  

/ sfɪəˈrɒmɪtə /

noun

1. an instrument for measuring the curvature of a surface

---

Etymology

Origin of spherometer

1820–30; < French sphéromètre; sphero-, -meter

Example Sentences

The spherometer is accepted as the sole guide in obtaining the proper curvature.

From On Laboratory Arts by Threlfall, Richard

The rough grinding is checked by the spherometer, and is interrupted when that instrument gives accordant and correct measurements all over the surface.

From On Laboratory Arts by Threlfall, Richard

A check by spherometer will be applied at intervals according to the judgment of the operator, but, in any case, the fellow tool and lens should be kept at very nearly the same figure.

From On Laboratory Arts by Threlfall, Richard

Here is a very fine spherometer that Dr. Hastings works with from time to time, and which he calls his standard spherometer.

From Scientific American Supplement, No. 484, April 11, 1885 by Various

The spherometer is accepted at all stages of the process as the final arbiter as to curvature.

From On Laboratory Arts by Threlfall, Richard