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columbium [kə'lembiəm] adj.
gen.	钶第41号元素铌的旧名; 钶铌,wiobium
agric.	钶; 铌 (Nb,41号元素，过去名钶，现改名为铌)
earth.sc.	轲元素 41 之旧名，今名为铌
met.	钶 (Cb (铌Nb 的旧名))
plast.	铌
space	钶 (化学元素，符号 Cb,现名 niobium 铌,符号 Nb)

columbium: 44 phrases in 5 subjects

Chemistry	6
Earth sciences	2
General	1
Metallurgy	34
Technology	1