nitroso

Ultimately from Latin nitrōsus. Doublet of nitrous.

nitroso (uncountable)

1. (chemistry) The univalent radical and functional group -N=O

• nitroso-

• “nitroso, combform.”, in OED Online ⁠, Oxford: Oxford University Press, 2003.

• Sortino, isotron, torsion

From nitro +‎ -oso. By surface analysis, nitro +‎ -oso.

• IPA^(key): /niˈtro.zo/, (traditional) /niˈtro.so/
• Rhymes: -ozo, (traditional) -oso
• Hyphenation: ni‧tró‧so

nitroso (feminine nitrosa, masculine plural nitrosi, feminine plural nitrose)

1. (chemistry) nitrous

• insorto

Learned borrowing from Latin nitrōsus. By surface analysis, nitro +‎ -oso.

• Hyphenation: ni‧tro‧so

nitroso (feminine nitrosa, masculine plural nitrosos, feminine plural nitrosas, metaphonic)

1. (chemistry) nitrous

   Synonyms: nitrado, salitroso

• “nitroso”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
• “nitroso”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
• “nitroso”, in Michaelis Dicionário Brasileiro da Língua Portuguesa (in Portuguese), São Paulo: Editora Melhoramentos, 2015–2026, →ISBN
• “nitroso”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026

Learned borrowing from Latin nitrōsus. By surface analysis, nitro +‎ -oso.

• IPA^(key): /niˈtɾoso/ [niˈt̪ɾo.so]
• Rhymes: -oso
• Syllabification: ni‧tro‧so

nitroso (feminine nitrosa, masculine plural nitrosos, feminine plural nitrosas)

1. (chemistry) nitrous

• “nitroso”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025