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vernier 音標拼音: [v'ɚniɚ] n. 游尺,游標,游標尺;
n. = vernier engine [空]微調發動機 遊尺,遊標,遊標尺; Vernier n 1: French mathematician who described the vernier scale ( 1580- 1637) [ synonym: { Vernier}, { Paul Vernier}] 2: a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale [ synonym: { vernier scale}, { vernier}] Vernier \ Ver" ni* er\, n. [ So named after the inventor, Pierre Vernier.] 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. [ 1913 Webster] { Vernier calipers}, { Vernier gauge}, a gauge with a graduated bar and a sliding jaw bearing a vernier, used for accurate measurements. { Vernier compass}, a surveyor' s compass with a vernier for the accurate adjustment of the zero point in accordance with magnetic variation. { Vernier transit}, a surveyor' s transit instrument with a vernier compass. [ 1913 Webster]
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