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infrasound ['ɪnfrəsaʊnd] n
health. infra-son; infrason m
phys.sc. infra-sons
infrasound Vibrations of the air at frequencies too low to be perceived as sound by the human ear, below about 15 hertz ['ɪnfrəsaʊnd] n
environ. infrason m
 English thesaurus
infrasound ['ɪnfrəsaʊnd] n
mil. Very low-frequency sound which can travel long distances and easily penetrate most buildings and vehicles
infrasound
: 1 phrase in 1 subject
United Nations1

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