a. Chem. [f. URAN-IUM + -OUS c. Cf. F. uraneux.]

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  1.  Formed from or related to the lower oxide of uranium.

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1842.  T. Graham, Elem. Chem., 643. The uranous sulphate yields, by evaporation, green prismatic crystals.

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1866.  Roscoe, Elem. Chem., 203. There are two oxides which form salts, viz., uranous oxide, UO, and uranic oxide, U2O3.

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1868.  Watts’ Dict. Chem., V. 942. Uranous Bromide. Ibid. Uranous chloride.

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1894.  G. S. Newth, Inorg. Chem., 617. Uranium dioxide … yielding the unstable uranous salts, such as uranous sulphate.

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  2.  Of or pertaining to, typical of, uranium.

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1878.  Abney, Photogr., 159. This is reduced to the uranous state by the action of light in the presence of organic matter.

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