Nb (Noun)
Meaning 1
A soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium.
Classification
Nouns denoting substances.
Synonyms
Hypernyms
Hyponyms
Meaning 2
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".
Classification
Nouns denoting communicative processes and contents.