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单词 pelopium
释义

pelopiumn.

Brit. /pᵻˈləʊpɪəm/, U.S. /pəˈloʊpiəm/
Origin: A borrowing from French. Etymon: French pelopium.
Etymology: < French pelopium (H. Rose 1844, in Comptes rendus 19 1274) < Pelop- (in Pelops , the name of the mythical son of Tantalus) + -ium -ium suffix. Compare German Pelopium (H. Rose, 1846).So named in order to reflect its similarity to tantalum; compare niobium n.
Chemistry. Now historical.
A metallic element originally thought to be distinct but later identified with niobium.
ΚΠ
1845 H. Rose in Chem. Gaz. 3 35 I have discovered in the tantalite of Bavaria two new metals:..the oxide of the second metal, to which I have for the present assigned the name of oxide of pelopium, greatly resembles tantalic acid.
1846 H. Rose Let. 27 Oct. in Corr. M. Faraday (1996) III. 561 I..send you the new metals Niobium, Pelopium and also Tantalum.
1914 Science 23 Jan. 139/2 In 1844..Heinrich Rose after an elaborate study of columbite and tantalite from many localities, announced the discovery of two new elements in them, niobium and pelopium.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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n.1845
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