1. of, relating to, or containing columbium (niobium); of or relating to the element with atomic number 41
Usage: chemistry; technical; columbium is an older name for niobium, now largely obsolete in scientific use

Examples

• Columbic compounds were studied extensively in early 20th-century metallurgy.
• The columbic oxide exhibits interesting electrical properties at high temperatures.
• Researchers analyzed the columbic content of the mineral sample.