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nitroso

1 American  
[nahy-troh-soh] / naɪˈtroʊ soʊ /

adjective

Chemistry.
  1. (especially of organic compounds) containing the nitroso group; nitrosyl.


nitroso- 2 American  
especially before a vowel, nitros-.
  1. a combining form of the nitroso group.

    nitrosobenzene.


nitroso British  
/ naɪˈtrəʊsəʊ /

noun

  1. (modifier) of, consisting of, or containing the monovalent group O:N-

    a nitroso compound

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of nitroso1

First recorded in 1880–85; independent use of nitroso-

Origin of nitroso-1

Combining form of Latin nitrōsus full of natron, equivalent to nitr ( um ) native soda, natron (< Greek nítron soda) + -ōsus -ose 1; -o-

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The principal chromophores are the azo, -N=N-, azoxy, =N2O, nitro, -NO2, nitroso, -NO, and carbonyl, =CO, groups.

From Project Gutenberg

The nitroso group is less important.

From Project Gutenberg

The first class includes those substances which require no preliminary treatment, and comprises the amides and ammonium compounds, pyridines, quinolines, alkaloids, albumens and related bodies; the second class requires preliminary treatment and comprises, with few exceptions, the nitro-, nitroso-, azo-, diazo- and amidoazo-compounds, hydrazines, derivatives of nitric and nitrous acids, and probably cyanogen compounds.

From Project Gutenberg

The mixture is now placed in a hood and the nitroso dimethylaniline added all at once, or as rapidly as possible.

From Project Gutenberg