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vernier |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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. {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. From WordNet r 1.6 [wn]: vernier n : a small movable scale that slides along a main scale; the small scale is calibrated to indicate fractional divisions of the main scale [syn: {vernier scale}]
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