| Verditer | n. [ F. vert-de-terre, literally, green of earth. ] (Chem.) (a) Verdigris. [ Obs. ] (b) Either one of two pigments (called blue verditer, and green verditer) which are made by treating copper nitrate with calcium carbonate (in the form of lime, whiting, chalk, etc.) They consist of hydrated copper carbonates analogous to the minerals azurite and malachite. [ 1913 Webster ]
Verditer blue, a pale greenish blue color, like that of the pigment verditer. [ 1913 Webster ]
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| Vernier | 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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