vernier

[ vur-nee-er ]
/ ˈvɜr ni ər /

noun

Also vernier scale. a small, movable, graduated scale running parallel to the fixed graduated scale of a sextant, theodolite, barometer, etc., and used for measuring a fractional part of one of the divisions of the fixed scale.
Machinery. an auxiliary device for giving a piece of apparatus a higher adjustment accuracy.

adjective

equipped with a vernier: a vernier barometer.

Origin of vernier

First recorded in 1760–70; named after P. Vernier

Words nearby vernier

verner's law, vernet, vernet's syndrome, verneuil process, vernicle, vernier, vernier caliper, vernier compass, vernier engine, vernier rocket, vernier scale

British Dictionary definitions for vernier scale

vernier
/ (ˈvɜːnɪə) /

noun

a small movable scale running parallel to the main graduated scale in certain measuring instruments, such as theodolites, used to obtain a fractional reading of one of the divisions on the main scale
an auxiliary device for making a fine adjustment to an instrument, usually by means of a fine screw thread
(modifier) relating to or fitted with a vernier a vernier scale; a vernier barometer

Word Origin for vernier

C18: named after Paul Vernier (1580–1637), French mathematician, who described the scale

Scientific definitions for vernier scale (1 of 2)

vernier scale

A small, movable auxiliary graduated scale attached parallel to a main graduated scale and calibrated to indicate fractional parts of the subdivisions of the larger scale. Vernier scales are used on certain precision instruments to increase accuracy in measurement.

Scientific definitions for vernier scale (2 of 2)

Vernier
[ vĕr-nyā′ ]
Pierre 1580-1637

French mathematician and maker of scientific instruments, known especially for his invention of an auxiliary scale (named after him) used for obtaining a highly precise reading of a subdivision of an ordinary scale.