infrasónico

== Spanish == === Etymology === From infra- +‎ sónico. === Adjective === infrasónico (feminine infrasónica, masculine plural infrasónicos, feminine plural infrasónicas) (physics) infrasonic ==== See also ==== supersónico ultrasónico === Further reading === “infrasónico”, 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