NB

English Dictionary -> Letter N -> NB

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NB Definition

• (n) a soft gray ductile metallic element used in alloys; occurs in niobite; formerly called columbium
• (n) a Latin phrase (or its abbreviation) used to indicate that special attention should be paid to something; "the margins of his book were generously supplied with pencilled NBs"

NB Synonyms

• atomic number 41
• N.B.
• NB
• niobium
• nota bene