infrasonic
[ in-fruh-son-ik ]
/ ˌɪn frəˈsɒn ɪk /
adjective
noting or pertaining to a sound wave with a frequency below the audio-frequency range.
Words nearby infrasonic
Medical definitions for infrasonic
infrasonic
[ ĭn′frə-sŏn′ĭk ]
adj.
Generating or using waves or vibrations with frequencies below that of audible sound.
Scientific definitions for infrasonic
infrasound
[ ĭn′frə-sound′ ]
Sound whose wave frequency is too low (under 15-20 hertz) to be heard by humans. Some animals, such as elephants and whales, emit calls at infrasound frequencies. See Note at ultrasound.