Как по Английски будет nonio

noun

A small movable graduated scale for obtaining fractional parts of subdivisions on a fixed main scale of a barometer, sextant, or other measuring instrument.

Примеры использования:

Root diameters at these positions along the roots were then measured using a vernier microscope.

noun

A device consisting of a series of concentric arcs engraved on a quadrant, used for the accurate measurement of angles, altitudes, and heights. also (in full "nonius quadrant"): the quadrant itself; also called pantometer. frequently attributive. now chiefly historical.

noun

A small movable graduated scale for obtaining fractional parts of subdivisions on a fixed main scale of a barometer, sextant, or other measuring instrument.

Примеры использования:

Root diameters at these positions along the roots were then measured using a vernier microscope.