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infrasonic

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.48 sec.
infrasonic /in·fra·son·ic/ (-son´ik) below the frequency range of sound waves.
in·fra·son·ic (nfr-snk)
adj.
Generating or using waves or vibrations with frequencies below that of audible sound.
infrasonic
below the frequency range of sound waves.


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It is also important to note that development of advanced weapon systems is proceeding along the lines of using not only traditional but also basically new physical principles: information warfare, laser, photon, infrasonic and ultra-high frequency radiation whose application is the most effective from space based platforms.
Principal trends in the evolution of space warfare by Kupriyanov, G.P. / Military Thought
Besides analyzing video footage turned in from amateur astronomers and space flight enthusiasts, investigators are looking at defense radar records, telescope images and infrasonic data from the National Oceanic and Atmospheric Administration.
INVESTIGATORS BUYING CIVILIANS' CAMERAS by Daily News (Los Angeles, CA)
Performance Standards for Sonic, Infrasonic, and Ultrasonic Radiation-Emitting Products.
Ultrasound device calibration by Hussey, Robert / Physical Therapy
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