英语词汇“lanthanum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	lanthanum
释义	lanthanum Chem.\|ˈlænθənəm\| Also 9 lant(h)anium. [f. Gr. λανθάν-ειν to escape notice (see quot. 1841).] A rare element belonging to the group of earth metals, found in certain rare minerals, e.g. cerite; it was discovered by Mosander 1839–41. Symbol Ln. Also attrib. 1841Brande Man. Chem. (ed. 5) 877 Another metallic oxide, which, as it has hitherto lain concealed in oxide of cerium, he [Mosander] designates Lantanum (λανθανειν, to lurk).1842Parnell Chem. Anal. (1845) 338 Oxide of lantanium.1849D. Campbell Inorg. Chem. 167 Lanthanum.1863Fownes' Chem. (ed. 9) 320 Metallic lanthanium is prepared like cerium.Ibid., A tolerably pure lanthanium salt may be obtained by [etc.].1873Ibid. (ed. 11) 381 Lanthanum Sulphate forms small prismatic crystals.
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