IPA: /ˈnaɪtrəs/
KK: /ˈnaɪtrəs/
Relating to or containing nitrogen, especially in a form that has a lower oxidation state than in similar compounds.
The nitrous oxide used in the experiment helped to enhance the reaction.
Nitrous → The word is derived from 'nitro-' (from Latin 'nitrum', meaning saltpeter or sodium nitrate) and '-ous' (a suffix used in chemistry to denote a lower oxidation state). Thus, 'nitrous' refers to compounds containing nitrogen in a lower oxidation state, particularly in relation to nitric compounds.
Think of 'nitro-' as relating to nitrogen and remember that 'nitrous' describes a type of nitrogen compound with a lower oxidation state.