Niobium (noun)

1. A metallic chemical element with the symbol Nb and atomic number 41.
2. A chemical element that is a soft, grey, and ductile transition metal.

Origin:

The word niobium is derived from the name of the greek goddess niobe, the daughter of tantalus. it refers to a metallic chemical element with the symbol nb and atomic number 41.

Examples:

1. Niobium is used in the production of high-temperature alloys.
2. Niobium is a key component in the production of superconductive materials.
3. Niobium is found in the minerals columbite and tantalite.
4. Niobium is a valuable metal that is used in a variety of industrial applications.
5. Niobium is a rare earth element that is found in very small quantities in the earth's crust.