ultra-sónico

== Portuguese == === Adjective === ultra-sónico (feminine ultra-sónica, masculine plural ultra-sónicos, feminine plural ultra-sónicas) (European Portuguese spelling) pre-reform spelling (used until 1990) of ultrassónico; still used where the agreement hasn’t come into effect and may occur as a sporadic misspelling === Further reading === “ultra-sónico”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026