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Nb

Symbol, Chemistry.

niobium.

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Definition for nb (2 of 3)

NB

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

Definition for nb (3 of 3)

N.B.

New Brunswick.
nota bene.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for nb

British Dictionary definitions for nb (1 of 4)

nb
/ cricket /

abbreviation for

no ball

British Dictionary definitions for nb (2 of 4)

Nb

the chemical symbol for

niobium

British Dictionary definitions for nb (3 of 4)

NB1

abbreviation for

New Brunswick

British Dictionary definitions for nb (4 of 4)

NB2

N.B., nb or n.b.

abbreviation for

nota bene

Word Origin for NB

Latin: note well
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for nb

Nb

The symbol for the elementniobium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for nb (1 of 2)

Nb

The symbol for niobium.

Scientific definitions for nb (2 of 2)

niobium
[ nī-ō′bē-əm ]

Nb

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for nb

N.B.

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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.