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vernier caliper |
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vernieror vernier caliperInstrument for making very accurate linear or angular measurements. Introduced in 1631 by Pierre Vernier (c. 1580–1637), it uses two graduated scales: a main scale similar to that on a ruler, and a specially graduated scale, the vernier, that slides parallel to the main scale and enables readings to be made to a fraction of a division on the main scale. vernier caliper [′vər·nē·ər ′kal·ə·pər] (engineering) A caliper rule with an attached vernier scale. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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