nb

Symbol, Chemistry.

1. niobium.

1. New Brunswick, Canada (approved for postal use).
2. nota bene.

1. New Brunswick.
2. nota bene.

abbreviation for

1. no ball

the chemical symbol for

1. niobium

abbreviation for

1. New Brunswick

abbreviation for

1. nota bene

abbreviation of Latin nota bene “note well.”

1. The symbol for the elementniobium

1. The symbol for niobium.

Nb

1. A soft, silvery, ductile metallic element that usually occurs in nature together with the element tantalum. It is used to build nuclear reactors, to make steel alloys, and to allow magnets to conduct electricity with almost no resistance. Atomic number 41; atomic weight 92.906; melting point 2,468°C; boiling point 4,927°C; specific gravity 8.57; valence 2, 3, 5. See Periodic Table.

An abbreviation for the Latin phrase nota bene, meaning “note well.” It is used to emphasize an important point.