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Niobium. No longer in scientific use.

[After Columbia.]


(Elements & Compounds) the former name of niobium
[C19: from New Latin, from Columbia, the United States of America]


(naɪˈoʊ bi əm)

a steel-gray metallic element resembling tantalum in its chemical properties; becomes a superconductor below 9 K; used chiefly in alloy steels. Symbol: Nb; at. no.: 41; at. wt.: 92.906; sp. gr.: 8.4 at 20°C.
[1835–45; < New Latin; see Niobe, -ium2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.columbium - a former name for niobium
atomic number 41, Nb, niobium - a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
References in periodicals archive ?
Limited tenders are invited for Supply of C-103 columbium alloy sheet
The Rocketdyne RS-2101 engine, constructed from Beryllium, Columbium and stainless steel by North American Rockwell/ Rocketdyne, stands 22 inches tall, with a nozzle diameter of 10.
However, for a number of materials such as columbium alloys, the Pisarenko-Lebedev criterion describes experimental results poor even for the state of plane stress [6].
elements; aluminum, chromium, cobalt, columbium, molybdenum, nickel,
M2 EQUITYBITES-February 10, 2011-Carpenter Technology Corp reports columbium surcharge to offset rapid and unpredictable changes in columbium prices(C)2011 M2 COMMUNICATIONS http://www.
1950, "Relationships in the Binary Systems of Nitrides and Carbides of Zirconium, Columbium, Titanium, and Vanadium," J.
Materials for the wing leading edge protective coatings ranged from columbium (good up to 2,800[degrees]F), molybdenum (3,000[degrees]F), graphite (3,800[degrees]F) and finally, tungsten (4,750[degrees]F).
backlot (1) Columbium columbarium columbarium Copper cropped cropped Curium Urumchi RHD Urumchi RHD Dubnium