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

n. An auxiliary device designed to facilitate fine adjustments or measurements on precision instruments.

adj. Of, relating to, or having a vernier.

n. A secondary scale with finer graduations than the primary scale of a measuring device; the vernier measures between graduations of the larger scale.

n. A secondary control input with finer control than the primary, or coarse, input; for example the vernier frequency tuning knob on a radio.

n. A secondary system of force application for the attitude control of a spacecraft; for example a vernier thruster.

n. A short scale made to slide along the divisions of a graduated instrument, as the limb of a sextant, or the scale of a barometer, for indicating parts of divisions. It is so graduated that a certain convenient number of its divisions are just equal to a certain number, either one less or one more, of the divisions of the instrument, so that parts of a division are determined by observing what line on the vernier coincides with a line on the instrument.

n. A small movable scale, running parallel with the fixed scale of a sextant. theodolite, barometer, or other graduated instrument, and used for measuring a fractional part of one of the equal divisions on the graduated fixed scale or arc.

n. a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale

n. French mathematician who described the vernier scale (1580-1637)

"They talked about it a lot because it was her profession, but it is the thin vernier above a much deeper reality."

vernier gauge   

scale    mathematician   

vernier-scale sight    nonius    calipers   

micrometer    windage    attitude-control    skinfold    high-force    azimuth    demodulator    stepper    propulsive    ballscrew