-no2

5 definitions found

-no2 - Collaborative International Dictionary of English v.0.48 :

  Nitric \Ni"tric\, a. [Cf. F. nitrique. See Niter.] (Chem.)
     Of, pertaining to, or containing, nitrogen; specifically,
     designating any one of those compounds in which, as
     contrasted with nitrous compounds, the element has a higher
     valence; as, nitric oxide; nitric acid.
     [1913 Webster]
  
     Nitric acid, a colorless or yellowish liquid obtained by
        distilling a nitrate with sulphuric acid. It is powerfully
        corrosive, being a strong acid, and in decomposition a
        strong oxidizer.
  
     Nitric anhydride, a white crystalline oxide of nitrogen
        (N2O5), called nitric pentoxide, and regarded as the
        anhydride of nitric acid.
  
     Nitric oxide, a colorless poisous gas (NO) obtained by
        treating nitric acid with copper. On contact with the air
        or with oxygen, it becomes reddish brown from the
        formation of nitrogen dioxide (NO2, also called nitric
        dioxide or nitric peroxide).
        [1913 Webster]

  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]

  Nitrite \Ni"trite\, n. [Cf. F. nitrite. See Niter.] (Chem.)
     A salt or ester of nitrous acid; a compound bearing the
     -NO2 radical.
     [1913 Webster +PJC]
  
     Amyl nitrite, a yellow oily volatile liquid, used in
        medicine as a depressant and a vaso-dilator. Its
        inhalation produces an instantaneous flushing of the face.
        [1913 Webster]

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

  Chromophore \Chro"mo*phore\, n. [Gr. ? color + fe`rein to bear.]
     (Chem.)
     Any chemical group or residue (as NO2; N2; or O2) which
     imparts some decided color to the compound of which it is an
     ingredient.
     [1913 Webster]