- 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.
Definition
[ n.]