Meaning of VERNIER in English

VERNIER

[ 'və:nɪə ]

■ 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.

Origin

C18: named after the 16th-cent. French mathematician Pierre Vernier .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.