a soft grey ductile metallic element used in alloys; occurs
in niobite; formerly called columbium Synonym(s):niobium, Nb, atomic number 41
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" Synonym(s):nota bene, NB, N.B.
From The Free On-line Dictionary of Computing (15Feb98) [foldoc]: