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]
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