soundlike waves having a frequency below the audible range, that is, below about 16Hz
Derived forms
infrasonic (ˌɪnfrəˈsɒnɪk)
adjective
infrasound in American English
(ˈinfrəˌsaund)
noun
sound with frequencies below the audible range
Word origin
[1925–30; infra- + sound1]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: buildup, dropout, off-line, payload, recycle
Examples of 'infrasound' in a sentence
infrasound
Powerful storms are known to generate infrasound that travels for thousands of kilometres.
Times, Sunday Times (2015)
But infrasound could be useful for weather forecasters.
Times, Sunday Times (2006)
Storms that generate tornados make very strong infrasound that can travel thousands of kilometres.
Times, Sunday Times (2015)
The researchers who made the study believed the birds may have detected infrasound, a lowfrequency sound that humans can't hear.
Times, Sunday Times (2015)
Infrasound carries over long distances, and all that we can hear is sometimes a deep rumbling sound.
Times, Sunday Times (2006)
The researchers believed that the birds may have detected infrasound - sound so low that we can't hear it.
Times, Sunday Times (2015)
The up-and-down movements of ocean waves and swirling winds of tornados and hurricanes all emit infrasound signals.