- 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.
- equipped with a vernier: a vernier barometer.
- 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 verniera vernier scale; a vernier barometer
1766, device for making precise measurements, from name of inventor, French mathematician Paul Vernier (1580-1637), who described it in a tract published 1631.
- 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.
- 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.