columbiumn.

Brit.

/kəˈlʌmbɪəm/, U.S.

/kəˈləmbiəm/

Etymology: < Columbia poetic name for America + -ium suffix. So named in 1801 by Hatchett, who discovered it in a specimen of the ore (columbite) brought from Massachusetts.

Chemistry.

A metallic element, occurring in columbite and other minerals. Symbol Cb. Now called niobium.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > niobium > [noun]

columbium1801

niobium1845

1801 Hatchett in Philos. Trans. (Royal Soc.) 42 65 A Metal hitherto unknown..Having consulted with several of the..chemists of this country, I have been induced to give it the name of Columbium.

1863 J. D. Dana Man. Geol. 139 There are a number of rare ores of..columbium among the Swedish azoic rocks.

1863–77 H. Watts Dict. Chem. IV. 49 This metal..ought perhaps, in justice to its discoverer, to retain the name columbium which he gave to it; but as the rediscovery of the metal is certainly due to Rose, chemists are, for the most part, agreed to designate it by the name which he assigned to it, namely niobium.

This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022).

单词	columbium
释义	columbiumn. Brit. /kəˈlʌmbɪəm/, U.S. /kəˈləmbiəm/ Etymology: < Columbia poetic name for America + -ium suffix. So named in 1801 by Hatchett, who discovered it in a specimen of the ore (columbite) brought from Massachusetts. Chemistry. A metallic element, occurring in columbite and other minerals. Symbol Cb. Now called niobium. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > niobium > [noun] columbium1801 niobium1845 1801 Hatchett in Philos. Trans. (Royal Soc.) 42 65 A Metal hitherto unknown..Having consulted with several of the..chemists of this country, I have been induced to give it the name of Columbium. 1863 J. D. Dana Man. Geol. 139 There are a number of rare ores of..columbium among the Swedish azoic rocks. 1863–77 H. Watts Dict. Chem. IV. 49 This metal..ought perhaps, in justice to its discoverer, to retain the name columbium which he gave to it; but as the rediscovery of the metal is certainly due to Rose, chemists are, for the most part, agreed to designate it by the name which he assigned to it, namely niobium. This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022). < n.1801
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