natrão

== Portuguese == === Etymology === Borrowed from Spanish natrón. === Pronunciation === Hyphenation: na‧trão === Noun === natrão m (plural natrões) (mineralogy) natron (hydrated sodium carbonate that crystallizes in the monoclinic system) Synonym: natro === Further reading === “natrão”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026 “natrão”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026