Infrasonic
/ˌɪn.frəˈsɑː.nɪk/noun
Relating to sound waves with frequencies below the lower limit of human hearing.
Did you know?Infrasonic waves are used by some animals and can travel huge distances, which is why nature can feel like it’s whispering in frequencies humans were never meant to hear.
Etymological Timeline
Latin
Latin
infra
“below, beneath”
Ancient Greek
Greek
phōnē
“sound, voice”
Late 19th Century
English
infrasound
“sound below the range of human hearing”
Early 20th Century
English
infrasonic
“pertaining to sound below audibility”
Modern English
English
infrasonic
“below the range of human hearing”
Explore more surprising origins