micrometer (caliper)

micrometer (caliper)

Instrument for making precise linear measurements of dimensions such as diameters, thicknesses, and lengths of solid bodies. It consists of a C-shaped frame with a movable jaw operated by a screw. The accuracy of the measurements depends on the accuracy of the screw-nut combination.

This entry comes from Encyclopædia Britannica Concise.
For the full entry on micrometer (caliper), visit Britannica.com.

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