Vernier

//ˈvɚniːɹ// name, noun

Definitions

Proper Noun
  1. 1
    A surname.
Noun
  1. 1
    A secondary scale with finer graduations than the primary scale of a measuring device; the vernier measures between graduations of the larger scale.
  2. 2
    a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale wordnet
  3. 3
    A secondary control input with finer control than the primary, or coarse, input; for example the vernier frequency tuning knob on a radio.
  4. 4
    A secondary system of force application for the attitude control of a spacecraft; for example a vernier thruster.

Etymology

Borrowed from French vernier. From Pierre Vernier, the inventor.

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