nitroso-

¹

especially before a vowel, nitros-.

1. a combining form of the nitroso group.

   nitrosobenzene.

nitroso

²

[nahy-troh-soh]

adjective

Chemistry.

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

nitroso

/ naɪˈtrəʊsəʊ /

noun

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

   a nitroso compound

Word History and Origins

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-

Origin of nitroso-²

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

Word History and Origins

Origin of nitroso-¹

C19: from Latin nitrōsus full of natron; see _nitre

Example Sentences

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

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The nitroso group is less important.

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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.

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

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