NIOBIUMS

Noun

niobiums

plural of niobium

Source: Wiktionary

NIOBIUM

Ni*o"bi*um, n. Etym: [NL., fr. L. & E. Niobe.] (Chem.)

Definition: A later name of columbium. See Columbium.

Source: Webster’s Unabridged Dictionary 1913 Edition

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