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The Collaborative International Dictionary of English v.0.48 (gcide)

nitro- \ni"tro-\pref.
1. A combining form or an adjective denoting the presence of
niter.
[1913 Webster]

2. (Chem.) A combining form (used also adjectively)
designating certain compounds of nitrogen or of its acids;
as nitrohydrochloric, nitrocalcite; also, designating the
group or radical {NO2}, or its compounds, as nitrobenzene
({C6H5.NO2}).
[1913 Webster]

{Nitro group}, the radical {NO2}; -- called also {nitroxyl}.
[1913 Webster]


Nitroxyl \Ni*trox"yl\, n. [Nitro- oxygen -yl.] (Chem.)
The group {-NO2}, usually called the {nitro group}.
[1913 Webster]

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