infrasonic
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infrasonic
[in″frah-son´ik]below the frequency range of sound waves.
in·fra·son·ic
(in'fră-son'ik),Denoting those frequencies that lie below the range of human hearing.
Synonym(s): subsonic
[infra- + L. sonus, sound]
in·fra·son·ic
(in'fră-son'ik)Denoting those frequencies that lie below the range of human hearing.
[infra- + L. sonus, sound]